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Allisa [31]
3 years ago
15

The sum of twice a number and 9 is -25 how do i translate the expression

Mathematics
1 answer:
Marina86 [1]3 years ago
5 0

Answer:

x+9=-25

(The solved portion if needed) x=-34

Step-by-step explanation:

Let us break down each portion of the phrase: The sum of twice a number and 9 is -25.

The first important part is "The sum". This means that the next two listed numbers (Or expressions) will be added together

Next is, "A number and 9". "A Number" is just an unknown variable. We can just name this x. "And 9" shows the other number that is being added.

At this point we have x+9

The next is, "is -25". Is means equals, so this part would be =-25

Now we can put these two parts together to get x+9=-25

*I'm not certain whether you need to solve it afterwards, so I'll do that here*

x+9=-25\\\\x=-34

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what is the volume of a triangular prism that is 75 centimeters long and that has a base with an area of 30 square centimeters
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The population of a city on April 15, 1915, was 47,175. During the period between March 1 and July 1, 1915, 1,325 new cases of s
Norma-Jean [14]

Answer:

the incidence rate is 28.47

Step-by-step explanation:

The computation of the monthly incident rate of active cases is shown below:

Incidence rate is

= 1325 ÷  (47175 - 642) × 1000

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3 years ago
Assume y varies directly with x. when y=2 2/3 when x=1/4, what is y when x=1 1/8? NEED HELP QUICK!!
snow_tiger [21]

3y=8x

Explanation:

If y varies directly with x then

y=c⋅x for some constant of variation c

If (x,y)=(14,23) is a solution to this equation, then

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So

y=83x

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One number is 8 times a first number. A third number is 100 more than the first number. If the sum of the three is 690, find the
mezya [45]
<h3>Given</h3>

Three numbers are n, 8n, and (100+n).

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<h3>Find</h3>

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<h3>Solution</h3>

n + 8n + (n+100) = 690

10n + 100 = 690 . . . . . . . simplify

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n = 59

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