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3 years ago

A pizza delivery driver earns $8 an hours and also spends $20 a day on gas. How much will the driver earn after working 8 hours?

Mathematics

1 answer:

Artist 52 [7]3 years ago

5 0

Answer:

$44

Step-by-step explanation:

If the driver earns $8 an hour, then 8*8 is 64.

But the driver also spends $20 a day, so if you subtract 20 from 64, you'll get 44. Therefore the driver earns $44 after working 8 hours.

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9w-4w+6<1+5w supposed to combine like terms

Mariana [72]

Answer/Step-by-step explanation:

Given:

$9w - 4w + 6$ < $1 + 5w$

To solve, collect like terms.

Subtract 5w from both sides

$9w - 4w + 6 - 5w$ < $1 + 5w - 5w$

$9w - 4w - 5w + 6$ < $1$

$6$ < $1$ (incorrect)

The inequality given has no solution or an information is missing.

6 0

3 years ago

Can someone solve this rational equation and plz don’t link files

nexus9112 [7]

r=13/2

After I solved it it was kinda easy

8 0

3 years ago

Read 2 more answers

A gardener works for 13 hours during a week and charges $169 how much does the gardener charge for each hour?

bonufazy [111]

Answer:

You have to divide to unit price, 169/13 is equal to 13!

Step-by-step explanation:

7 0

3 years ago

If k is a positive integer and n = k(k + 7), is n divisible by 6 ? (1) k is odd. (2) When k is divided by 3, the remainder is 2.

olganol [36]

Answer:

1.) Yes

2.) Yes

Step-by-step explanation:

Given that

n = k(k + 7)

If k is a positive integer and n = k(k + 7), is n divisible by 6 ?

(1) k is odd. Yes.

Let assume that k = 3

Then, n = 3(3 + 7)

n = 3 × 10

n = 30.

30 is divisible by 6.

(2) When k is divided by 3, the remainder is 2. That is,

Let k = 5

Then,

5/3 = 1 remainder 2

Substitute k into the equation

n = k(k + 7)

n = 5(5 + 7)

n = 5 × 12

n = 60

And 60 is divisible by 6.

Therefore, the answer to both questions is Yes.

5 0

3 years ago

Tina is making rectangular signs. Each poster has an area of 1800 square inches and the length is 30 inches more than the width.

Fittoniya [83]

Let the width be x. Since the length is 30inches longer than the width, the length is 30 + x.
Area = length x width = (30 + x)(x)
i.e. (30 + x)(x) = 1800 square inches.

$30x + x^{2} =1800 \\ x^{2} +30x-1800=0 \\ x^{2} -30x+60x-1800=0 \\ ( x^{2} -30x)+(60x-1800)=0 \\ x(x-30)+60(x-30)=0 \\ (x+60)(x-30)=0$
x + 60 = 0 or x - 30 = 0
x = -60 or x = 30
but the width cannot be a negative number, hence x = 30inches
i.e. width = 30 inches
length = 30 + 30 = 60 inches.

4 0

3 years ago