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kirill [66]
4 years ago
12

Sue wants to use mental math to find 7 times 53. Write an expression she could use.

Mathematics
1 answer:
Mashutka [201]4 years ago
6 0
She could multiply 50x7 and than 3x7 and add those two together.
50 x 7 = 350
3 x 7 = 21
21 + 350 = 371
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Given the formula A =pieab solve for a.
Romashka [77]

Answer:

a = A/πb

Step-by-step explanation:

To solve this subject of the formulae given that A = πab.

<u>solution</u>

A = πab

the next step is to look for a unique way to get rid of the variables disturbing "a" from standing alone. this variables are π and b, we need to detach dem from a

A = πab

divide both sides by πb

A/πb = πab/πb

A/πb = a

a = A/πb

therefore  the value of a in the fomular A = πab is evaluated to be  a = A/πb

5 0
3 years ago
PLS, I NEED HELP! Translate this sentence into a compound inequality with math symbols.
Vlada [557]

Answer:

8o F at least I'm pretty sure 101o F ≥ 8o

Step-by-step explanation:

Correct me If im wrong

7 0
3 years ago
Is it a parallelogram or not?​
lions [1.4K]
Where is the picture
7 0
4 years ago
How would you substitute this equation?​
svlad2 [7]

If <em>y</em> = <em>x</em> and <em>y</em> = <em>z</em>, then by substitution we can say <em>x</em> = <em>z</em>.

In this case, substitution gives us

-1/2 <em>x</em> - 2 = -3/2 <em>x</em> + 2

and we can solve for <em>x</em> :

3/2 <em>x</em> - 1/2 <em>x</em> = 2 + 2

<em>x</em> = 4

then solve for <em>y</em> :

<em>y</em> = -1/2 <em>x</em> - 2

<em>y</em> = -1/2 * 4 - 2

<em>y</em> = -2 - 2

<em>y</em> = -4

4 0
3 years ago
Robyn opened a bank account to save her birthday money. it was paying 3.75% interest. then the interest rate went up by 0.65%. h
Savatey [412]
Her new interest rate would be 4.40%
8 0
4 years ago
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