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3 years ago

Hey guys i need some help on this division problem i have

Mathematics

1 answer:

julsineya [31]3 years ago

4 0

Answer:

3. 25/28

4. 1 1/7

Step-by-step explanation:

when you divide fractions just flip one of them and then multiply across

so instead of 5/7 ÷ 4/5 its

5/7 • 5/4

please mark me brainliest to help me get ace rank

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a parking meter contains $8.25 in dimes and quarters. after emptying the meter, the worker counts 51 coins. how many quarters an

Marianna [84]

<h3>30 dimes and 21 quarters are present</h3>

<em><u>Solution:</u></em>

Let "d" be the number of dimes

Let "q" be the number of quarters

1 dime = $ 0.10

1 quarter = $ 0.25

The worker counts 51 coins

Therefore,

d + q = 51

d = 51 - q ---------- eqn 1

<em><u>A parking meter contains $8.25 in dimes and quarters</u></em>

Therefore,

0.10d + 0.25q = 8.25 -------- eqn 2

<em><u>Substitute eqn 1 in eqn 2</u></em>

0.10(51 - q) + 0.25q = 8.25

5.1 - 0.10q + 0.25q = 8.25

0.15q = 3.15

Divide both sides by 0.15

Substitute q = 21 in eqn 1

d = 51 - 21

Thus 30 dimes and 21 quarters are present

8 0

3 years ago

Is this correct?<br><br>A.yes <br><br>B. No<br><br>C. Maybe<br><br>D. I DUNNO???!!!

Mamont248 [21]

Answer:

its correct there adding to or subtracting 2 each time.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Evaluate the indefinite integral.

Oksana_A [137]

Answer:

$\frac{1}{3} x^3 - x^2 + 4x$

Step-by-step explanation:

All this takes is the use of the power rule, which, for integrals, says that

∫ $x^n$ = $\frac{1}{n+1}x^{n+1}$ .

With this in mind, we can integrate:

∫ $x^2 - 2x + 4$

= $\frac{1}{3} x^3 - x^2 + 4x$ .

We can also check our answer by differentiating our answer:

$\frac{d}{dx} (\frac{1}{3}x^3 - x^2 + 4x)\\\\ = x^2 - 2x + 4$

so we are correct!

hope this helped!

4 0

2 years ago

Someone please help me

yuradex [85]

Answer:

112in²

Step-by-step explanation:

Formulas: V = $\frac{lwh}{3}$ , V = lwh

Sub: v = $\frac{4 x 4 x 6}{3}$

Solve: 32

Sub: v = 4 x 4 x 5

Solve: 80

V = 80 + 32

V = 112

<u>The total volume of the figure is 112in²</u>

3 0

3 years ago

Please help me klkkfljfjfhcnfnf

mrs_skeptik [129]

Answer:

0.0017

Step-by-step explanation:

A percent is part of 100%. It converts to a decimal by moving the decimal point two place values to the left.

For example, 60%=0.60

For 0.17% = 0.0017

4 0

4 years ago