3 years ago

How many solutions does this equation have? 9(w-9)-2=-7w+7(w-8)

Mathematics

1 answer:

Oliga [24]3 years ago

8 0

There is one solution
W=3

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Mariah spent $9.50 on 9 pounds of limes and pears. Limes cost $0.50 per pound and pears cost $1.50 per pound. Let l be the numbe

Mashcka [7]

Answer:

4 pounds of lime and 5 pounds of pears

Step-by-step explanation:

I + P = 9

0.5l + 1.5P = 9.5

I = 9 - P

0.5(9 - P) + 1.5P = 9.5

4.5-0.5P + 1.5P = 9.5

4.5 + P (1P) = 9.5

P = 9.5-4.5 = 5

I = 9 - 5 = 4

Answer: 4 pounds of lime and 5 pounds of pears

5 0

3 years ago

What does x need to be for this to be true?

ludmilkaskok [199]

×=1 because 1×3=3 ok

7 0

3 years ago

Cedric and Josh both ordered the same size pizzas at Marco’s Pizzeria; however, they ordered different toppings. Marco’s charges

Oksanka [162]

Let
C---------> the cost of a pizza
t----------> number of toppings

we know that
$15.74-3t=$14.49-2t
15.74-14.49=3t-2t-------------> t=1.25

the cost of one topping is $1.25
and the cost of one pizza without topping is
15.74-3*1.25--------> $11.99

then
an equation for the cost of a pizza, C, as a function of the number of toppings, t ordered is
C=11.99+1.25t

the answer is
C=11.99+1.25t

6 0

2 years ago

Read 2 more answers

What is the radius of a circle with an area of 50.24 cubic inches? Use 3.14 for pi.

OverLord2011 [107]

Hope this helps you..!!!

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3 years ago

John works 6 hours a day and earns $150.00. Peter works 8 hours a day and earns $160.00. Who earns more money per hour?(think un

Zanzabum

Step-by-step explanation:

John

1hour=x

6x=150

X=150÷6=25

John earns 25 dollars per hour

Peter

1hour=x

8x=160

X=160÷8=20

Peter earns less than John

6 0

3 years ago