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3 years ago

7

What is 7(3x+5y) ☝️The x is not a multiply sign

1 answer:

Sergio039 [100]3 years ago

6 0

21x+35y you have to distribute the outside number into the ones in the inside. Instagram: duiliobandzzz ; )

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?? I'm lost. <br>numbers on the graph: (1,162.5), (2,2125) (4,4250) (6,6375)

kykrilka [37]

So A is days rented to the total cost. For B just get the slope and add 1 more point to the graph because a week is 7 days and then write (day,total cost)

5 0

3 years ago

An art museum has a pentagon-shaped room. When drawn to scale on a coordinate grid, the corners of the room are points (18,20):

AURORKA [14]

Answer:

$2\ gal$

Step-by-step explanation:

we know that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

$A(18,20),B(4,20),C(4,4),D(16.2),E(22.10)$

step 1

Find the distance AB

we have

$A(18,20),B(4,20)$

substitute in the formula

$d=\sqrt{(20-20)^{2}+(4-18)^{2}}$

$d=\sqrt{(0)^{2}+(-14)^{2}}$

$AB=14\ ft$

step 2

Find the distance BC

we have

$B(4,20),C(4,4)$

substitute in the formula

$d=\sqrt{(4-20)^{2}+(4-4)^{2}}$

$d=\sqrt{(-16)^{2}+(0)^{2}}$

$BC=16\ ft$

step 3

Find the distance DE

we have

$D(16.2),E(22.10)$

substitute in the formula

$d=\sqrt{(10-2)^{2}+(22-16)^{2}}$

$d=\sqrt{(8)^{2}+(6)^{2}}$

$d=\sqrt{100}$

$DE=10\ ft$

step 4

Find the distance AE

we have

$A(18,20),E(22.10)$

substitute in the formula

$d=\sqrt{(10-20)^{2}+(22-18)^{2}}$

$d=\sqrt{(-10)^{2}+(4)^{2}}$

$d=\sqrt{116}$

$AE=10.77\ ft$

step 5

Find out the area of the four walls

To determine the area sum the length sides and multiply by the height of the walls

so

$A=(AB+BC+DE+AE)h$

substitute the given values

The height of the walls is 10 ft

$A=(14+16+10+10.77)10$

$A=(50.77)10$

$A=507.7\ ft^2$

step 6

Determine the number of gallons needed to paint the four walls

we know that

one gallon of paint is enough to cover 400 square feet

using proportion

$\frac{1}{400}\ \frac{gal}{ft^2}=\frac{x}{507.7}\ \frac{gal}{ft^2}\\\\x=507.7/400\\\\x= 1.27\ gal$

Round up

$x=2\ gal$

5 0

3 years ago

Can anyone help me with this?

dmitriy555 [2]

Okay this is the basic when there is a - + + = -

5 0

3 years ago

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.

antiseptic1488 [7]

The answer is 40 because if you do simple division you will get that 800/20 is 40

4 0

2 years ago

Jace is a high school basketball player. In a particular game, he made some free

Svetradugi [14.3K]

Jace made 3 three pointers and 6 free throws.

3(3) + 6(1) = 15

Free throws = f
Three pointers = t

t(2) = f
t + f = 15

4 0

3 years ago

Read 2 more answers