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3 years ago

10

Mathematics

1 answer:

mihalych1998 [28]3 years ago

7 0

Step-by-step explanation:

If a+b=50

When b=30

a=50-b

a= 50 - 30

a=20

Therefore 20(a)+30(b)=50

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Solve the inequality 5(2h+8)<60

Bezzdna [24]

Answer and Step-by-step explanation:

$Greetings!$

$Let's~answer~your~question!$

$First, ~let's~ work~ on ~the~ left~ hand ~side~ of ~your ~inequality,~ the~ 5(2h+8)~This\\ means,~ for~ instance, ~to ~see ~if ~it ~can~ be ~simplified ~at~ all.~Multiply~ h ~and~ 2$

$The~ answer~ is~ h$

$2\times h~ evaluates~ to~ 2h$

$2\times h+8 ~evaluates~ to~ 2h+8$

$Multiply ~5~ by~ 2h+8$

$we ~multiply~ 5~ by~ each ~term ~in~ 2h+8 ~term ~by~ term~and~we~use~distributive~\\property.$

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$Multiply~ 5 ~and ~8$

$5 \times 8 = 40$

3 0

2 years ago

If the width of a pool is 60 feet and the perimeter is 200 feet, how long is the pool?

velikii [3]

Answer:

140

Step-by-step explanation:

200-60 = 140

8 0

2 years ago

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Worth 20 points!!<br> Tell me an x, y ordered pair that is a solution for this equation. Y = 5x - 2

NISA [10]

These are three solutions
(0,-2)
(1,3)
(2,8)

8 0

2 years ago

The area of a rectangle is x2 - 2x - 15 and the length of the rectangle is x + 3. Find the width of the rectangle.

Alexandra [31]

The area of the triangle could be determined by multiplying the length and the width. Since, we are given the area and the length, to find the width, you divide the area by the length:

w = A ÷ l
w = (x2 - 2x - 15) ÷ (x+3)

What do you have to multiply to (x+3) to yield x2 - 2x - 15? That would be x - 5. Since the sum of -5 and 3 = -2 (middle term) and the their product is -15 (last term).

Hence, the width is (x-5).

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3 years ago

Hey, please help me thanks

rjkz [21]

Answer:

240

Step-by-step explanation:

7 0

3 years ago

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