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just olya [345]
3 years ago
13

80 decreased by 3 times a number is 56 what’s the number

Mathematics
2 answers:
frez [133]3 years ago
7 0

Answer:

The number would be a variable like x 80-3x=56

Step-by-step explanation:

80-3x=56

IgorLugansk [536]3 years ago
6 0

Answer:

X = 8

Step-by-step explanation:

80 - 3(x) = 56

-3(x) = -24

X = 8

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I'm not sure but I did do it on a calculator so 1.515-1.56= -0.045

6 0
3 years ago
What is equivalent to 5(9q + 7)​
Andrej [43]

Answer:

45q + 35

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Circle A has a diameter of 9 inches, a circumference of 28.26 inches, and an area of 63.585 square inches. The diameter of circl
torisob [31]
Please note that pi has just one value.  The only difference stems from round-off error when you don't use all of the digits following "3.14159 ... " to represent the value of pi.  The formula for circumference is C = 2 pi r, or C = pi d, 
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Circle A:  Diameter 9 inches and Circumference of 28.26 inches

If the diameter is 9 inches, then C = 28.26 inches = pi (9 inches).  Divide 28.26 inches by 9 inches.  Note that you MUST round off the ratio (pi) that you obtain, since 28.26 has 4 significant figures and 9 has just one.

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6 0
3 years ago
Kaitlynn needs 3 pounds of fruit for a salad,
Greeley [361]

Answer:

2 of the 1/3 Bananas and 5 of the 1/4 strawberries

Step-by-step explanation:

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5 0
3 years ago
3. Are these ratios equivalent? 35:28 and 10:8 *
attashe74 [19]

Reduce each ratio to its minimum expression to find if they are equal.

35:28

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10:8

\begin{gathered} \frac{10}{8}=\frac{2\cdot5}{2\cdot4} \\ =\frac{5}{4} \end{gathered}

Since both ratios reduce to 5:4, they are equivalent.

Another way to check a:b is equivalent to c:d, is that a*d = b*c

In this case, this will be true if 35 times 8 is equal to 10 times 28:

\begin{gathered} 35\cdot8=280 \\ 10\cdot28=280 \end{gathered}

Since both products are equal, then the ratios are equivalent.

4 0
1 year ago
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