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dimaraw [331]
4 years ago
14

289=a^2 what is a equal to?

Mathematics
1 answer:
Sonbull [250]4 years ago
7 0

Answer:

A will equal 17.

Step-by-step explanation:

You might be interested in
Find the number if: 5/9 of it is 90 PLEASE EXPLAIN
yawa3891 [41]

Answer:

<h3 /><h3>The number is 162</h3>

Step-by-step explanation:

Let the number be<u> x</u>

5/9 of the number is 90

Which is

5/9 of x = 90

5/9 × x = 90

5/9x = 90

Multiply through by 9

That's

5x = 810

Divide both sides by 5

5x/5 = 810/5

x = 162

Therefore the number is 162

Hope this helps you

6 0
3 years ago
What is the equation of this line in standard form? −8x+7y=25 −9x+8y=−23 −8x+9y=−23 −8x+9y=23
kvasek [131]
<span>−8x+7y=25 is already in standard form, altho some people would prefer to re-write it as

</span><span>−8x+7y-25 = 0.

You have shared 4 equations here.  Next time, please separate them with commas or semi colons, or type just 1 equation per line, for increased clarity.  Thanks.</span>
5 0
4 years ago
Last year at a certain high school, there were 125 boys on the honor roll and 80 girls on the honor roll. This year, the number
Elodia [21]

Answer:

6.8% decrease

Step-by-step explanation:

a drop of 8% means that only 92% of 125 boys remained on honor roll from last year; .92 x 125 = 115

a drop of 5% means that only 95% of 80 girls remained on honor roll from last year; .95 x 80 = 76

total number of students on honor roll last year = 125 + 80 = 205

total number of students on honor roll this year = 115 + 76 = 191

percent of change = (191 - 205) ÷ 205 = -14/205 = -.068

-.068, which represents a 6.8% decrease

3 0
2 years ago
Translate the word phrase into a math expression. 1 fewer than a number A. n – 1 B. 1 – n C. n + 1 D. 15 ÷ n
Sedaia [141]
1 fewer then a number : n - 1
7 0
3 years ago
Parsons Bank offers two​ checking-account plans. The No Frills plan charges 25 cents per check whereas the Simple Checking plan
deff fn [24]
No frills = $0.25(x)
simple = $6 + $0.05(x)
set equal to each other
0.025(x) = 6 + 0.05(x)
rearrange like terms together
0.025(x) - 0.05(x) = 6
0.020(x) = 6
x =300
Simple plan will be cheaper once you use more than 300 checks
4 0
3 years ago
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