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NikAS [45]
3 years ago
10

Please help me i will give brainliest *image

Mathematics
2 answers:
Alika [10]3 years ago
8 0
7.5 Devide 30 by 4 and it is 7.5 that is how much she saved
jekas [21]3 years ago
5 0

Answer:

$22.5

Step-by-step explanation:

25 percent of is1/4 so take 1/4 of the price of 30$ off. THis is 30/4=7.5

30-7.5=22.5

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A sign at a store reads "3 notebooks for $6". What is the price per note book
mojhsa [17]
$2 per notebook would be the correct answer
3 0
3 years ago
Read 2 more answers
Before going to school, Eudora ran from her home to a secret laboratory at an average speed of 12 km. Since she was running late
Brrunno [24]

Answer:

Eudora spent 0.5 hours in running and 1.5 hours flying using her jet-pack.

Step-by-step explanation:

Let x represent time spent in running.

We have been given that the entire trip took 2 hours, so time spent in flying the jet-packs would be 2-x.

We know that distance is equal to speed times time.

\text{Distance}=\text{Speed}\times\text{Time}

Eudora ran from her home to a secret laboratory at an average speed of 12 km, so distance traveled by running would be 12x.

Eudora took one of her jet-packs and flew to her school at an average speed of 76 km, so distance covered by jet-packs would be 76(2-x).

We are told that Eudora traveled a total distance of 120 km. We can represent this information in an equation as:

12x+76(2-x)=120

12x+152-76x=120

Combine like terms:

-64x+152=120

-64x+152-152=120-152

-64x=-32

Divide both sides by -64:

\frac{-64x}{-64}=\frac{-32}{-64}

x=0.5

Therefore, Eudora spent 0.5 hours in running.

Upon substituting x=0.5 in expression for time spent in flying jet-packs, we will get:

2-x\Rightarrow 2-0.5=1.5

Therefore, Eudora spent 1.5 hours flying using her jet-pack.

7 0
3 years ago
How many inches are there in 3 yards?
Elina [12.6K]

A.There are 108 inches in 3 yards.

8 0
3 years ago
QUAL A ÁREA, EM CENTÍMETROS QUADRADOS, DA FIGURA AO LADO?
Ratling [72]

Answer:

Step-by-step explanation:

Dado:

Considere o quadrilátero como trapézio, então nós temos

soma dos lados paralelos = 13+22

altura = 12

Encontrar:

área de trapézio = ?

Solução:

Considere o quadrilátero como trapézio, então nós temos

\textrm{área de trapézio}=\frac{1}{2}\times \textrm{soma dos lados paralelos}\times altura\\=\frac{1}{2}\times (13+22)\times 12\\=210\ centímetros quadrados

3 0
3 years ago
1. Pedro had $14.90 in his wallet. He spent $1.25 on a drink. How much does he have left?
Murljashka [212]
(a) 14.90 rounded is 15, and 1.25 rounded is 1, so 15-1 is $14.
(b) My estimation will be high because I had to round up on the larger number and round down on the smaller number leaving a larger gap between the answer and the estimation.
(c) 14.90-1.25=13.65, so Pedro has $13.65 left in his wallet. But the difference between the estimation and the answer is 14-13.65=0.35 so its a $0.35 difference between the estimation and the answer for how much would be left in Pedro's wallet.
5 0
3 years ago
Read 2 more answers
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