A road running north to south crosses a road going east to west at the point P. Car A is driving north along the
first road, and car B is driving east along the second road. At a particular time car A is 40 miles to the north
of P and traveling at 60 mi/hr, while car B is 30 miles to the east of P and traveling at 75 mi/hr. How fast is the
distance between the two cars changing?

Answer:

correct answer is b!!!

with what question???

Answer:

What do you need help with.  i will help you.

i

Step-by-step explanation:

Answer:

a. Tip is before the discount so the waiter will get;

= 42 * 18%

= $7.56

b. New total;

Coupon of 15% off applies;

= 42 * (1 - 15%)

= $35.70

Add the tip;

= 35.70 + 7.56

= $43.26

Answer:

0.57 feet per minute.

Step-by-step explanation:

If the caterpillar moves 4 feet every 7 minutes, it can be written as a ratio: 4/7. When you divide 4 by 7, you'll find the feet per minute rate.

Answer:

3:4

Step-by-step explanation:

probability = what wanted : total outcome

                 =  3 heads : 4 tosses

                = 3 : 4

Answer:

A) (15 x $3) + (10 x $2) + (12 x $1) = X

B) $77      

Step-by-step explanation:

A) Each wrapping paper is 3 dollors, and they bought 15 (15 x 3)

Each greeting card is 2 dollors, and they bought 10 (10 x 2)

Each roll of ribbon is 1 dollors, and they bought 12 (12 x 1)

B) 15 times 3 is 45

10 times 2 is 20

12 x 1 is 12

45 + 20 + 12 = 77

Answer:

no lo se, sol necesitaba puntos

Step-by-step explanation:

Answer:

= − 1 9

Step-by-step explanation:

Answer: 6 pounds of sugar candy, and 9 pounds of chocolate candy.

Step-by-step explanation:

Let's define the variables:

C = pounds of chocolate candies used.

S = pounds of sugar candies used.

We know that he wants to make a total of 15lb, then:

C + S = 15

We also want that the price per pound to be equal to 5$.

This means that the price of the 15 pounds will be the same as the price of the un-mixed candies.

C*$7.00 + $2.00*S = $5.00*15

Then we have a system of equations:

C + S = 15

C*$7.00 + $2.00*S = $5.00*15

To solve this system, we need to start by isolating one of the variables, i will isolate C in the first equation:

C = 15 - S

now we can replace that in the other equation:

(15 - S)*$7.00 + $2.00*S = $5.00*15

Now we can solve this for S.

$105 - $5.00*S = $75

$105 - $75 = $5.00*S

$30 = $5.00*S

$30/$5 = S = 6

Then there are 6 pounds of sugar candy, and we can use the equation:

C + S = 15

C + 6 = 15

C = 15 - 6 = 9

There are 9 pounds of chocolate candy in the mix.

Answer:

9 pounds of chocolate candy

6 pounds of sugar candy

Step-by-step explanation:

x will represent pounds of chocolate candies used

y will represent pounds of sugar candies used

x + y = 15

x · $7.00 + $2.00 · y = $5.00 · 15

x = 15 - y

(15 - y) · $7.00 + $2.00 · y = $5.00 · 15

105 - $5.00 · y = 75

105 - 75 = $5.00 · y

$30 = $5.00 · y

$30 ÷ $5 = y

$30 ÷ $5 = 6

y = 6

x + y = 15

x + 6 = 15

x + 6 - 6 = 15 - 6

x = 9

Answer:

non linear

Step-by-step explanation:

Answer:

Linear

Step-by-step explanation:

Answer: 2pi

[tex]l=\frac{\pi .4.90 }{180}=2\pi[/tex]

Step-by-step explanation:

Answer:

The property used here is: Multiplication property of Equality

Step-by-step explanation:

Claire solved the expression [tex]\frac{x}{4}=\frac{36}{16}[/tex] by two ways

Way 1: Solving using proportion:

[tex]\frac{x}{4}=\frac{36}{16}[/tex]

By cross multiplying:

[tex]16x=144[/tex]

Divide both sides by 16

[tex]x=9[/tex]

Way 2:

She also solve the same expression [tex]\frac{x}{4}=\frac{36}{16}[/tex] by using following steps

Multiply both sides by 4

[tex]4\times( \frac{x}{4})=4\times(\frac{36}{16})\\x=\frac{144}{16}\\x=9[/tex]

We need to tell the name of property that allowed her to go from [tex]\frac{x}{4}=\frac{36}{16}[/tex] to [tex]4\times(\frac{x}{4})=4\times(\frac{36}{16})[/tex]

The property used here is: Multiplication property of Equality

The property states that if A , B and C are real numbers then

A = B and AC = BC are equivalent.

Answer:

C

Step-by-step explanation:

Answer:

whole i think

Step-by-step explanation:

my teacher drew this on the board last year and i think it was whole numbers im not sure tho

Answer:

152

Step-by-step explanation:

6840 divided by 45 is 152

Answer:

x=-3, y=-19

Step-by-step explanation:

we can solve by substitution.

y = 2x-1 we can derive from the second equation.

plugging it into the first equation, 2x -3(2x-1) = 15.

simplying, 2x-6x+3 = 15 --> -4x+3 = 15, -4x = 12, x = -3.

now we know x, so we can solve for y by plugging it into one of the equations. --> -3*-6+y = -1

simplify, 18+y = -1 --> y = -19.

Answer:

Mean = 12.85714

Median = 15

Range = 15

Step-by-step explanation:

Mean:

5 + 15 + 10 + 20 + 15 + 10 + 15 = 90

90 / 7 = 12.85714

Median:

5, 10, 10, 15, 15, 15, 20

Median = 15

Range:

20 - 5 = 15

[tex]\left \{ {{f(x)=-3x+2} \atop {g(x)=x+1}} \right.[/tex]

To find g(f(x)), Substitute f(x) in g(x).

[tex]g(-3x+2)[/tex]

Then substitute x = -3x+2 in g(x) = x+1

[tex]g(-3x+2)=(-3x+2)+1\\g(-3x+2)=-3x+2+1\\g(-3x+2)=-3x+3[/tex]

Therefore, the answer is [tex]g(f(x))=-3x+3[/tex]

Answer:

36 ounces

Step-by-step explanation:

9 x 4 = 36

Answer:

Area of a square

Step-by-step explanation:

the second one

Answer:

area of a square

Step-by-step explanation:

area is found by multiplying length times width. perimeter is found by adding. the area of a triangle wouldn't work because in order to find that, you would need to multiply by all three sides.

Answer:

525 minutes

Step-by-step explanation:

Given that the monthly fee for the phone is $19 and the call charges rate is $0.02 per minute.

Her monthly budget is $29.50.

Let Tamara can make a maximum number of n minutes call in a month.

So, call charges for n minutes = $0.02n

Total monthly expenses on her phone = 19+0.02n

As her monthly budget is $29.50.

So, 19+0.02n=29.50

0.02n=29.50-19

0.02n=10.50

n=10.50/0.02

n=525

Hence, she can make a maximum of 525 minutes call.

Answer:

3/8

Step-by-step explanation:

It just is

Answer:

3/8

Step-by-step explanation:

hope this helps!

.

Answer:

no becuz its a whole number not a fraction

Step-by-step explanation:

ax+b

a=5

b=0

Answer:

24

Step-by-step explanation:

24/8=3

Answer:

ok

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

A is at -2 so D has to be at positive 2, C is located at -3 1/2, and B is at 3.5.