3 years ago

I-Ready

Mathematics

1 answer:

julsineya [31]3 years ago

8 0

i have this exact screen and i dont know the answer

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Do you know has three times as many dimes as quarters the dollar amount of her dimes and quarters is $6.05 how many quarters doe

vesna_86 [32]

The number of quarters she have 11.

<h3>What is a system of equations?</h3>

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

Let consider y = quarters; x = dimes

We know that there are 3 times as many dimes as quarters. So we can state that x = 3y.

Then, we say that 25y + 10x = 605

(Value of coin * amount of coins)

Then we substitute x=3y into the equation, yielding:

25y + 10(3y) = 605

25y + 30y = 605

55y = 605

605/55 = 11 = y

Therefore, the number of quarters she have 11.

Learn more about equations here;

brainly.com/question/10413253

#SPJ1

5 0

1 year ago

You have a large container of petrol. You have used 320 quarts of petrol. Eighty percent of the petrol remains. How many quarts

Oduvanchick [21]

Answer:

256 quarts remain.

Step-by-step explanation:

.8x320=256

7 0

3 years ago

. A square picture frame occupies an area of 112 ft2 . What is the length of each side of the picture in simplified radical form

saw5 [17]

Recall that a square is just a rectangle with all sides equal.

and the area of a rectangle is just length * width.

$\bf \textit{area of a rectangle}\\\\
A=length\cdot width\quad 
\begin{cases}
length=x\\
width=x\\
A=112
\end{cases}\implies 112=x\cdot x\implies 112=x^2
\\\\\\
\sqrt{112}=x\implies \sqrt{16\cdot 7}=x\implies \sqrt{4^2\cdot 7}=x\implies 4\sqrt{7}=x$

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3 years ago

Alex used a $10 discount coupon to buy a sweatshirt. After subtracting the discount, he paid less than $15 for the sweatshirt. W

ki77a [65]

X-10>15.........................................

3 0

3 years ago

(x +5) (x -2) h e l p m e

SSSSS [86.1K]

Answer:

x=10

Step-by-step explanation: