Answer:
17
Step-by-step explanation:
2(9)-1
18-1
17
Hope that helpa
Y= 99
9. Suppose a varies directly as b, and a = 7 when b = 2. Find b when a = 21.
Answer:
6
Step-by-step explanation:
Given expression:
a varies directly as b;
a ∝ b
So;
a = kb where k is the constant of proportionality;
if a= 7 and b = 2;
7 = 2k
k = [tex]\frac{7}{2}[/tex]
Now, find b when a = 21
21 = [tex]\frac{7}{2}[/tex] x b
b = 6
In the school library, there are 110 fiction books, 250 nonfiction
books, and 125 magazines. The ratio of fiction books to magazines is 110 : 125.
Write the ratio of fiction books to magazines as a fraction, a decimal, and a
percent.
Answer:
110/125 = 22/25
0.88
%88
Step-by-step explanation:
It's basic math.
Simplify the expression: 2x – 3x (5x – 8) – 4r (x - 2)
John has a part-time job. He is payed £6.80 per hour. This week he worked for 9 and a half hours. Work out John's total pay for this week.
Answer:
£64.6
Step-by-step explanation:
Multiply £6.80 by 9
£61.2
Now divide £6.80 by 2
£3.4
Add £3.4 to £61.2
The answer is £64.6
(I think)
Hope this helps :)
It takes 6 cubes to build a staircase with 3 steps. How many cubes will be needed for 11 steps?
Pls show work
Answer:
5 more cubes
Step-by-step explanation:
you just keep on adding the cubes. So i am in honors math and the easiest way to do math like this just use paper so start with the number of cubes and the just keep on adding till you get to the number you need in this case that number is 11.
The equation of line CD is y = -2x - 2. Write an equation of a line parallel to line CD in slope-intercept form that contains point (4, 5).
y = -2x + 13
y=zx+7
y=x+3
y = -2x - 3
Answer:
y = -2x + 13
Step-by-step explanation:
Rearrange the area formula to solve for |
A=lw
Answer: L=A/W
Or you can plug in the values for Area and width.
Step-by-step explanation:
If you divide the total area by the width, you get the length
A: 400
L: ?
W: 50
400=50L
400/50=50L/50
8=L
L=400/50
L=8
Hope this helps!
Write the equation in slope-intercept form through the point (-5, 3) and is perpendicular to the line y = 2x - 3 and graph
Slope intercept form: y = mx + b
When a line is perpendicular to another line, its slope is the negative reciprocal to that slope.
From this information, we already know that the slope of our new line is -1/2, because -1/2 is the negative reciprocal to 2 (which is the slope of the original line).
y = -1/2x + b
Because the point (-5,3) is given, we can simply plug the x and y coordinates into our incomplete equation.
3 = -1/2(-5) + b
3=2.5 + b
b = 0.5
ANSWER: y = -1/2x + 0.5
THE GRAPH IS LINKED; RED LINE IS y=2x-3 AND BLUE LINE IS y=-1/2x + 0.5
Write the equation of the line that is perpendicular to y = -2x + 4 and goes through the point (6, 5). Show all work for credit.
Answer:
y = 1/2x + 2
Step-by-step explanation:
The slope of a perpendicular line is the opposite reciprocal of the original line.
-2 -> 1/2
Find the new y-intercept with the point we are given (6, 5).
y = 1/2x + b
5 = 1/2(6) + b
5 = 3 + b
2 = b
Fill in everything we solved for back into the orignal formula.
y = 1/2x + 2
Best of Luck!
Determine the slope of the line that passes through the points M(-3,5) and N(1,8). Represent the slope in decimal form.
Answer:
0.75
Step-by-step explanation:
y²-y¹/x²-x¹
8-5/1-(-3)
3/4
=0.75
Jennifer bought 3 shirts for $48.00. At the same rate, how much would Jennifer pay for 10 shirts?
sentence stem:Jennifer would pay $ for 10 shirts.
Answer:
160 dollars
Step-by-step explanation:
3 for 48.00 dollars meaning that she pays 16 dollars a shirt
16 times 10 is 160
so 160 dollars
Answer:
160
Step-by-step explanation:
48 divided by 3 times 10
What is the slope of the line with the following coordinates from the
table?
Answer: The slope is 1/8
Step-by-step explanation:
The x values go up by 8. That gives the run.
the y values go up by 1. That gives the rise.
Slope is rise/run SO
1/8 is the slope.
Graph attached.
A picnic favorite is strawberry Shortcake! Each batch of strawberry
shortcake calls for 1 2/5 pounds of cake and 3/4 pound of strawberries. If
you want to make 5 batches of strawberry shortcake, how many pounds
of cake and strawberries do you need to buy?
To make 5 batches of strawberry shortcake you'll need 7 pounds of cake and 3 3/4 pounds of strawberries for a total sum of 10 3/4 pounds.
Step-by-step explanation:1 - Write an equation to represent the problem
For every batch, it takes 1 2/5 pounds of cake and 3/4 pounds of strawberries
therefore
[tex]Let \\\ n_c = pounds~of~cake \\\n_s = pounds~of~strawberries \\\b = number~of~batches[/tex]
[tex]n_c = 1 \frac{2}{5}b \\\n_s = \frac{3}{4}b[/tex]
For ease of math, lets convert these to decimals
[tex]n_c = 1.4b \\\n_s = 0.75b[/tex]
2 - Plug in your variables to solve for cake and strawberries
Cake
[tex]n_c = 1.4b \\\ n_c = 1.4(5)\\n_c = 7[/tex]
To make 5 batches of strawberry shortcake you will need 7 pounds of cake
Strawberry
[tex]n_s = 0.75b \\\n_s = 0.75(5) \\\n_s = 3.75[/tex]
to make 5 batches of strawberry shortcake you will need 3.75 or 3 3/4 pounds of strawberries --- Totalling in at 10.75 pounds or 10 3/4
Hope this helps :)
What is the correct answer?
Answer:
C) (-3, -1)
Step-by-step explanation:
y = 5/3x + 4
When x = 0, y = 4
When y = 0, x = -2.4
graph the points: (0, 4) and (-2.4, 0)
y = -2/3x - 3
When x = 0, y = -3
When y = 0, x = -4.5
graph the points: (0, -3) and (-4.5, 0)
The lines will cross at point: (-3, -1)
13. Jonas is riding his bicycle at 18 kilometers per hour, and he has already ridden for 40 kilometers. (6, 148)
Answer:
Step-by-step explanation:
40 / 18
= 2.22 hours
what is the answer to 6(-⅔) =
Answer:
-4
Step-by-step explanation:
6 × [tex]-\frac{2}{3}[/tex] = -4I hope this helps!
what is
-4/3(12k + 27) = -57 - 9k
Answer:
Step-by-step explanation:
-16k - 36 = - 57 - 9k
-36 + 57 = - 9k + 16k
21 = 7k
21/7 = k
3 = k
help this is my last try!!!!!!!!!!!!!!!!!!!!!!!!11
Answer:
2^8=256
Step-by-step explanation:
Multiply the exponents and simplify
' $1, 200 . 18 1.5%
Answer:
2178
Step-by-step explanation:
Select the correct answer.
Gio created a scatter plot and drew a line of best fit, as shown
Answer:
y=3x+5 is the answer for this question
Answer:
y= 1/3x+4
Step-by-step explanation:
The y-intercept is at 4 and the slope is 1/3
A side of the triangle below has been extended to form an exterior angle of 125°. Find the value of xx.
Answer: 55
Step-by-step explanation:
x+125=180
subtract 125 on each side
when you do that 125 cancels out and your left with
180-125=55
The value of x from the given triangle is 55°.
Given that, a side of the triangle below has been extended to form an exterior angle of 125°.
What are adjacent angles?Adjacent angles are those angles that are always placed next to each other in such a way that they share a common vertex and a common side but they do not overlap each other.
From given figure, the exterior angle of tringle is 125° and x is adjacent angle to that.
Now, 125°+x=180°
⇒ x=180°-125°
⇒ x=55°
Hence, the value of x from the given triangle is 55°.
To learn more about the adjacent angles visit:
https://brainly.com/question/12838185.
#SPJ2
answer this just tell me the color
Answer:
yellow
Step-by-step explanation:
Which expression is equivalent to 2(m − 4) + 1?
A. 2m − 7
B. 2m − 3
C. 2m + 9
D. 2m + 10
Answer: The answer it A
2(m-4)+1
2m-8+1
2m-7
Which of the following statements is true about the three quadrilaterals?
a. D and E are similar but not congruent.
b. E and F are similar and congruent.
c. D and E are similar and congruent.
d. F and D are similar but not congruent.
lin swims 10 laps in a pool in 25 minutes how many laps per minute is that
Answer:
2.5 laps per minute
Step-by-step explanation:
Find the slope of the line passing through the points ( -9, 3) and (6, 3)
Answer:
M=0
Step-by-step explanation:
Which of the following numbers is irrational?
-0.3
Answer:
-3/10
Step-by-step explanation:
PLEASE HELP ME PLEASE!!!
Answer:
cant not see the photo honey
Step-by-step explanation:
Answer:
For point (1, -2): -2 = -1 - 1 = -2. Therefore, point (1, -2) lies on the graph of the equation.
The graph of the equation is the set of points that are solutions to the equation.
A coordinate pair on the graph of the equation is a solution to the equation.
For the point (0, -1): -1 = -(0) - 1 = 0 - 1 = -1.
Therefore, The point ( 0, −1 ) lies on the graph of the equation.
Step-by-step explanation:
I feel like this wont help- qwq okay the answer is C-
The answer choices are
A) <3 and <10
B) <2 and < 10
C) <3 and <7
D) <2 and <8
Helpp pls it’s 25 points each
Answer:
1.= 2.5
2.= is incorrect because there should not be more than one = sign
Step-by-step explanation:
