Answer:
4 liters of 30% and 6 liters of 50% acid.
Step-by-step explanation:
Let the volume of 30% acid be x, then the volume of 50% acid will be
(10 - x) liters.
So we have the equation:
0.30x + 0.50(10 - x) = 0.42* 10
0.30x + 5 - 0.50x = 4.2
0.80 = 0.20x
x = 4 liters.
So we need 4 liters of 30% acid and 6 liters of 50% acid.
Solve:
7/8 - (-1/8)
A. -1
B. -1/8
C. 1/8
D.1
Subtracting a negative is the same as adding a positive, since the negatives cancel each other out.
So, 7/8 - (-1/8) is the same as 7/8 + 1/8. Adding 1/8 to 7/8 gives you 8/8, or one whole, so your answer is D. 1!
Read The Following Question On The PNG
ah whoever answers it right gets the crownn
Match the terms to their definition.
1. U.S. Customary System of Units
2. conversion
the primary system of measurement used in the United States
The change in how a measurement is expressed
It took Jenny and her family 1 hour to drive to her grandmother’s house. Her grandmother lives about 45 miles away. At what rate did the family travel?
Answer:
45k/h
Step-by-step explanation:
IN THE QUESTION, HE DROVE THE CAR FOR 1 HOUR AND HE MOVED 45 MILES
help, my family doesn't have a lot of money and my mom offered to get me a new skate setup bc my last skateboard got stolen and if i get good grades she'll buy me it.
A rectangle has a height to width ratio of 3 : 4.5. give TWO examples of dimensions for rectangles that could be scaled versions of this rectangle.
Group of answer choices
1: 6 meters by 7.5 meters
2: 4 yards by 5 yards
3: 2 cm by 6 cm
4: 12 feet by 18 feet
5: 9 inches by 6 inches
Write the equation of a line with the following slope and y-intercept slope = y-intercept = -2 Complete the equation below y = _______________ Use x as your variable. Type your answer below (mathematical expression):
Answer:
y = x - 2
Step-by-step explanation:
A puppy weighs 3 lbs at 10% of its adult weight. How many lbs will the puppy be when it is 60% of its weight?
Answer:
18lbs
Step-by-step explanation:
18 since 3 = 10% & 10% = 1/6 of 60% which means 3 * 6 = 18
MIDDLE SCHOOL MATH- 4 QUESTIONS
please help i will give brainliest to best answer
(Please show your work as well)
1: 15 - 3/7 =
2: Hayden has 5 hours to practice his oboe. It takes him 3/5 of an hour to practice one song. How many songs can he practice in 5 hours?
3: 12/15 x 6/18 =
4: 4 4/8 x 1 3/11 =
Answer:
( I am assuming that these are all fractions)
1. 14 [tex]\frac{4}{7}[/tex]
2. 8
3. [tex]\frac{4}{15}[/tex]
4. 5 [tex]\frac{8}{11}[/tex]
Step-by-step explanation:
1. First you have to convert 15 into a fraction but it must have the same denominator causing the equation to look like 105/7 - 3/7= 102/7. But you cannot just leave the fraction like that it must be simplified 14 [tex]\frac{4}{7}[/tex]
2. Three-fifths of an hour is 36 minutes. You would next multiply 5 by 60 which would the hours into minutes 5 x 60 = 300. You would then divide 300 by 36 which would give you 8.3333333333, which I just simplified it to 8
3. In order for you to multiply a fraction you would first multiply the top then the bottom. 12 x 6= 72, 15 x 18= 270. The fraction would look like 72/270 which is simplified to [tex]\frac{4}{15}[/tex] .
4. First I changed the fractions into improper fractions causing the fraction to look like 36/8 x 14/11 (I got these answers by 8 by 4 then adding 4, then for the next fraction I multiplied 11 by 1 then added 3.) 36 x 14= 1224, 11 x 8= 88 the fraction would look like 1,224/88 you would simplify to 5 [tex]\frac{8}{11}[/tex]
Hope this helps
Please tell me if I made any mistakes I enjoy learning from them.
I will give brainiest who get it right and was first to get it right
Answer:
0.00845 and 1
Step-by-step explanation:
25,755 + 9,583 and then this one 8,258 x 9
Answer:
First one is 35,338
Second one is 74,322
Step-by-step explanation:
Answer:
its ummmmm 0
Step-by-step explanation:
A car is traveling at a steady speed. It travels 1 1/2 miles in 2 1/4 minutes. How far will it travel in 41 minutes? In 1 hour? PLEASE HURRY THIS IS ALSO TIMED PLEASE!!!!
Answer:
The car will travel 29 1/3 miles in 44 minutes, 40 miles in an hour.
Step-by-step explanation:
First, find how far the car can travel in one minute.
(1 1/2)/(2 1/4)=(2/3)
Then multiply the amount of time in minutes.
(2/3)*44= 29 1/3
(2/3)*60=40
Answer:
Step-by-step explanation:
If takes a label machine 15 minutes to put labels on 300 cans of peaches. At this rate, how many minutes will it take the label machine to put labels on 500 cans of peaches
The area of a rectangle is greater than or equal to 90 square centimeters. The width of the rectangle is 9 centimeters and the length is x centimeters. Select the possible value(s) of x.
Answer:234
Step-by-step explanation:
XY>=90
9x>=90
x>=10
possible solutions include 134131413 4234234232 342342423 2342423423 342423432 42342423 23423424 23424242234 244324242424234 2342 and 497553452353570542389579523954875923759237529
Which set of ordered pairs represents y as a function of x?
9514 1404 393
Answer:
A. {(2, -1), (4, -2), (6, -3), (8, -4)}
Step-by-step explanation:
A set of ordered pairs that is a function will have no repeated x-values.
Here, the x-values are ...
a) {2, 4, 6, 8} . . . no repeats, a function
b) (0, 1, 1, 2} . . . 1 is repeated; not a function
c) {3, 3, 4, 4} . . . 3 and 4 are repeated; not a function
d) {1, 1, 2, 2} . . . 1 and 2 are repeated; not a function
The first of the listed choices represents y as a function of x.
solve for x show work 7(x+8)=−14
Answer:
x=-10
Step-by-step explanation:
7x+56=-14
7x=-70
Can someone explain?
what is the solution for this -3x ≥ 36?
A: x ≥ -12
B: x ≥ -108
C: x ≤ -108
D: x ≤ -12
Please, please HELP!!!
If the diameter of a circle is 12, what is the area and circumference?
Answer:
circumference: 37.7
area: 113.1
Step-by-step explanation:
for the future look up '___ of a circle'
and enter the radius (if u are given the diameter divide it by 2)
Answer:
circumference = 37.68 (37.7 if you're rounding it)
Area = 113.04 (113.1 if you're rounding it)
Step-by-step explanation:
The formula for circumference is C=2πr (2 times pi times radius)
If the diameter is 12, the radius is 6.
2 x 3.14 x 6 = 37.7
The formula for area is A=πr2 (pi x radius to the second power)
The radius is 6. Six to the second power is 36.
36 x 3.14 = 113.04
Give brainliest but answer with an actual answer
Megan and Kyaa find out they are reading the same book. Although they will be starting on different page numbers,
they decide to record their progress to determine who is the faster reader.
Megan recorded her progress with the following table:
Megan and Kyaa find out they are reading the same book. Although they will be starting on different page numbers,
they decide to record their progress to determine who is the faster reader.
Megan recorded her progress with the following table:
sorry, picture isn't working i will try my best to show it, but i will just type it
x:0,2,3,5
Y:125,215,260
Kyaa modeled her progress by the following equation:
y=40+50x
Who is reading at a faster rate? Megan or Kya
Part B: At what rate was the faster person reading?:
40 pages per hour
45 pages per hour
50 pages per hour
90 pages per hour
125 pages per hour
Answer:
its easy how do u not under stand it LOL
Step-by-step explanation:
Dakota has 4/10 kilograms of clay. He divides the clay to make 8 equal-sized pots.
How many grams of clay are in each pot?
Answer:
There are 2.22 grams of clay are in each pot.
Step-by-step explanation:
I WILL GIVE BRAINLIEST! DO NOT ANWSER IF YOU DON'T KNOW! Guy and Jim work at a furniture store . Guy is paid $185 per week plus 3% of his total sales, in dollars, x, which can be represented by g(x) = 185 + 0.03x. Jim is paid $275 per week plus 2.5 % of his totals sales in dollars, x, which can be represented by j(x) = 275 + 0.025 x . Determine the value of x, in dollars, that will make their weekly pay the same.
Answer:
185 + 0.03x = 275 + 0.025x
Step-by-step explanation:
0.03x - 0.025x = 275 - 185
0.005x = 90
Divide both sides by 0.005
x = 90/0.005
x=18000
plz help, algebra, if you cant help plz don't answer.
Answer:
it is the graph that is up to 10 on the y value and 15 on the x value
( on the second picture it is the first graph)
Step-by-step explanation:
In a family number of children 3
Charge for 1 child = $y per hour
Charge for 3 children = 3y
Charge for 1 Adult = $x per hour
Charge for 2 adults = 2x
If the family does not want to s[end more than $30 an hour at health club.
Where, x and y should be greater than 0.
make the graph of this inequality.
take equality of equation and then find x and y table.
2x+3y=30
x y
0 10
6 6
15 0
we have to take a test point (0,0)
This statement is true. So, Graph will shade towards the test point (0,0)
Plz help will Mark Brainly A. Geographic elevation is the distance of a location above or below Earth's sea level. Laguna del Carbon has a lower
elevation than Death Valley. The Dead Sea is the lowest point of elevation on Earth. Lake Assal is higher in elevation than
the Dead Sea but lower than Laguna del Carbon. The table below shows the four elevations without the location names
Location
Elevation (feet)
-1360
-509
-344
-282
Use the given information to determine the locations which match the elevations in the table.
List the location names along with the corresponding elevation levels.
B. The lowest point of elevation in the state of Vermont is Lake Champlain at 95 feet above sea level.
Which is further from sea level, Lake Champlain or Death Valley? Explain.
C. New Orleans, Louisiana, is at an elevation of -8 feet relative to sea level.
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Answer:
A. -1360 Dead Sea; -509 Lake Assal; -344 Laguna del Carbon; -282 Death Valley
B. Death Valley is farther
Step-by-step explanation:
A. We have the following information:
Dead Sea is lowest
Laguna del Carbon is lower than Death Valley
Lake Assal is lower than Laguna del Carbon
So, the match between elevations and locations is ...
-1360 Dead Sea-509 Lake Assal-344 Laguna del Carbon-282 Death Valley__
B. Lake Champlain is 95 feet from sea level; Death Valley is 282 feet from sea level. Death Valley is farther from sea level.
can somebody explain how to get the answer/ what formula, and the answer??
Answer:
9 cm
Step-by-step explanation:
divide the total circle centimeter which is 18 in half. Half of 18 is 9 so the diameter is 9.
Answer:
R = 9 cm
Step-by-step explanation:
C = 2ПR
Also C = 18П сm
2ПR = 18П
R = 18П/2П = 9 сm
Please help!!
fhasidhasiuhdhdas (this was so i could post the question)
An area of a square is 1.56 square feet what si the area of a floor covered with 10 to the third power tiles?
Answer: 1560 ft squared
Step-by-step explanation:
If Santa has an 8 ft ladder and it reaches the top while being set 2 ft from the base of the chimney, how tall is this chimney
Answer:
Step-by-step explanation:
Well if its a 8ft ladder and its being set 2ft off from the base i think the chimney is 6 ft tall cause 8-2 is 6...
The chimney measures approximately 7.75 feet tall.
What is the right triangle?A right triangle is defined as a triangle in which one angle is a right angle or two sides are perpendicular.
To find the height of the chimney, you can use the formula for the length of the hypotenuse of a right triangle, which is:
c² = a² + b²
Where c is the length of the hypotenuse (in this case, the length of the ladder), a is the length of one of the legs (in this case, the distance the ladder is set from the base of the chimney), and b is the length of the other leg (in this case, the height of the chimney).
Plugging in the values given in the question, we get:
8² = 2² + b²
64 = 4 + b²
b² = 64 - 4
b² = 60
b = √60
b = 7.745 ≈ 7.75
Thus, the height of the chimney is approximately 7.75 feet.
Learn more about the right triangle here:
brainly.com/question/6322314
#SPJ2
What are the answer for these I need it ASP its a test its 505 of my grade!!!!!!! PLZ
Answer:
I'll do #2 for ya.
a) 27
b) 9
c) 17.5
Step-by-step explanation:
a) 75% of 36 = 27
b) 36-27=9
c) 14*1.25=17.5
The hypotenuse of the right triangle is 5y inches long. The lengths of the legs are x + 8 and x + 3 inches. If the perimeter of the triangle is 55 inches and the length of the hypotenuse minus the length of the shorter leg is 5 inches, how many inches long is the hypotenuse?
Answer:Triangles have legs ?
Step-by-step explanation:
The width of the table is 4ft. The length of the table is twice the width. What is the length of the table?
Answer:
8ft
Step-by-step explanation:
4x2=8
HELP! Almost due! Look at picture below to see the one problem.
Answer:
2
Step-by-step explanation:
