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3 years ago

What is 15+8x-10-x? help

Mathematics

2 answers:

Georgia [21]3 years ago

8 0

15+8x-10-x is 5+ 7x. Your welcome

anastassius [24]3 years ago

6 0

Answer: 7x + 5

Step-by-step explanation: You can't mix variables and non-variables so

8x - x = 7x and 15 - 10 = 5. Brainliest please?

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at store A, pencils are sold on individually. The cost y of x pencils is represented by the equation y = 0.55x. The costs of pen

Helga [31]

Answer:

The pencils at store A cost more

Step-by-step explanation:

The complete question in the attached figure

store A

we have

$y=0.55x$

This is a proportional relationship between the total cost (y) and the number of pencils (x)

The constant of proportionality is equal to the slope

The slope or unit rate is equal to

$m=\$0.55\ per\ pencil$

Store B

This is a proportional relationship between the total cost (y) and the number of pencils (x)

The constant of proportionality or slope is equal to

$k=\frac{y}{x}$

For (6,3.06)

substitute

$k=\frac{3.06}{6}$

$m=\$0.51\ per\ pencil$

The linear equation at store B is

$y=0.51x$

Verify each statement

case 1) The pencils at store A cost more

The statement is true

Because, one pencil at store A cost $0.55 and one pencil at store B cost $0.51

case 2) The pencils at store A cost $0.27 each

The statement is false

Because, one pencil at store A cost $0.55

case 3) The pencils at store B cost $0.30 each

The statement is false

Because, one pencil at store B cost $0.51

case 4) The pencils at store B cost more

The statement is false

Because, pencils at store A cost more

3 0

3 years ago

Correct factorization of the polynomial below? 2p^2 - 10pq + 25q^2

Aneli [31]

$2p^2 - 10pq + 25q^2
\\p^2+p^2-10pq+25q^2
\\p^2+(p-5q)^2$

4 0

3 years ago

Read 2 more answers

1) A grocer sold 5 kg of wheat flour at Rs 30 per kg and gained 20%. If he had sold

natita [175]

Answer:

given,

selling price (sp)=rs 5 ×30

=rs 150

now, gain %=20%

cost price (cp)=

$\frac{sp \times 100}{100 + gain\%}$

$= \frac{150 \times 100}{100 + 20}$

therefore cp= rs125

now,

again in 2nd case

sp= rs 27×5

therefore sp=rs 135

and cp= rs125

now, sp>cp so,

$gain\% = \frac{sp - cp}{cp} \times 100\%$

or, gain=

$= \frac{135 - 125}{125} \times 100\%$

therefore gain %= 8%.... is answer

hope it helps..

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3 years ago

During 30 minutes on the treadmill, LaToya burned 20 calories per minute. What is the rate of change of the function that repres

LUCKY_DIMON [66]

Answer:

the rate of change is 20 calories per minute.

Step-by-step explanation:

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3 years ago

Walter's savings account has a balance of $273. After 5 years, what will the amount of interest be at 5% compounded quarterly? a

lutik1710 [3]

The answer is 76.99 but rounded would make it 77.00 which is C

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3 years ago

Read 2 more answers