Answer:
Step-by-step explanation:
Let the number of dimes be d and quarters be q
<u>The value is $8.80 = 880¢, so:</u>
- 10d + 25q = 880 ⇒ 2d + 5q = 176
<u>If the dimes were quarters and the quarters were dimes, the coins' total value would be $7.30 or 730¢</u>
- 25d + 10q = 730 ⇒ 5d + 2q = 146
<u>Now we have 2 equations. Solving the system by elimination, subtract 5 times the second equation from twice the first equation:</u>
- 2(2d + 5q) - 5(5d + 2q) = 2(176) - 5(146)
- 4d - 25d = -378
- -21d = -378
- d = -378/-21
- d = 18
The number 55 is an irrational number if 55 cant be expressed as a ratio, as in irrational. A quotient is the result you get when you divide one number by another number. For 55 to be an irrational number, the quotient of two integers cant equal 55.
Step-by-step explanation:
Answer:
-7
Step-by-step explanation:
First, we know that we are solving for x so what we need to do is to find out what times -5=35.
We know that
-5x7=-35
So we know our answer cant be positive 7, which means we need the opposite of 7 which is -7.
And:
-5x-7=35
This makes the equation true:
Hence, the correct answer is -7
<span>87 24/25 ...this is a mixed fraction ..so in order to get in in decimal we first need to convert it into unlike fraction ..for that we do the following ...
</span>
<span>87 24/25
</span>=> multiply the whole number and the denominator ..
=>87 X 25 = 2175
=>now add the numerator to this product ...
=>2175 + 24 = 2199 ..
=> so now we get an unlike fraction which when we divide we get the answer in decimals ..
=> 2199/25 = 87.96 ...
that is ... 87 24/25 in decimals ...
Hope it helps !!!
Hi there!
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I believe your answer is:
"Isolate the variable using inverse operations."
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Here’s why:
To solve for a variable, we would have to isolate it on one side.
To isolate it, we would use inverse operations on both sides on the equation until the variable is isolated.
There are no like terms in the given equation.
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Hope this helps you. I apologize if it’s incorrect.