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3 years ago

Yo im not good at this stuff, can someone help me?

Mathematics

1 answer:

Kazeer [188]3 years ago

7 0

Answer:

21 kWh

Step-by-step explanation:

1. Subtract 25% from the original amount.

25% of 28 kWh is ...

0.25 × 28 kWh = 7.00 kWh

Subtracting this from 28 kWh, we find the usage after reduction to be ...

28 kWh - 7 kWh = 21 kWh

2. We know that if we reduce 100% of a quantity by 25%, then the resulting amount is (100 -25)% = 75% of the original. As a fraction, this is 75/100 = 3/4 of the original amount. Then the reduced usage is ...

(3/4) × (28 kWh) = 3·(7·4)/4 kWh = 3·7 kWh = 21 kWh

Mario must reduce his usage to 21 kWh or less.

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Quiana has 7 times more text messages from Yolanda than from Pierre. Quiana has 56 text messages from Yolanda. Which equation ca

gizmo_the_mogwai [7]

Answer:

Quiana has 8 text messages from Pierre.

Step-by-step explanation:

This question can be solved using a rule of three.

Quiana has 7 times more text messages from Yolanda than from Pierre.

This means that for each message that she receives from Pierre, she receives 7 from Yolanda.

She received 56 from Yolanda.

7 messages from Yolanda - 1 messages from Pierre

56 messages from Yolanda - x messages from Pierre

$7x = 56$

$x = \frac{56}{7}$

$x = 8$

Quiana has 8 text messages from Pierre.

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3 years ago

Solve the inequality (question 30 please, already solved others)

STALIN [3.7K]

$\bf \cfrac{1}{4}n+12 \geqslant \cfrac{3}{4}n-4\implies \cfrac{1}{4}n+16 \geqslant \cfrac{3}{4}n\implies 16\geqslant \cfrac{3n}{4}-\cfrac{1n}{4}\implies 16\geqslant \cfrac{3n-1n}{4} \\\\\\ 16\geqslant\cfrac{2n}{4}\implies 16\geqslant \cfrac{n}{2}\implies 32 \geqslant n$

4 0

3 years ago

Read 2 more answers

Please answer this thanks

Arlecino [84]

Answer:

$66.24

Step-by-step explanation:

TIP:

55.20 x 0.15 = 8.28

TAX:

55.20 x 0.05 = 2.76

Answer:

55.20 + 8.28 + 2.76 = 66.24

(Also always tip your server 20% unless they were bad)

7 0

2 years ago

Write an equation to solve this problem: Twenty-four is 25 percent of what number? Find the answer .

Ghella [55]

24 times 100 then divide that by 25

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3 years ago

HELP MY FRIENDS PLEASE I BEG OF THEE

Over [174]

<h2>Answer:</h2>

<u><em>The answer has to be 30. </em></u>

<h2>Step-by-step explanation:</h2>

<em>Correct me if I am incorrect but I would believe I am correct. Have a good one!</em>

7 0

3 years ago

Yo im not good at this stuff, can someone help me?​

Yo im not good at this stuff, can someone help me?