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zzz [600]
3 years ago
7

(9 x 10) + (20x + 21) = 571 What does (x) equal

Mathematics
2 answers:
creativ13 [48]3 years ago
8 0
(9 × 10) + (20x + 21) = 571
90 + 20x + 21 = 571
111 + 20x = 571
- 111
20x = 460
÷ 20
x = 23
I hope this helps!
vesna_86 [32]3 years ago
4 0
28 is the answer to your question.
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Ierofanga [76]

Answer:

X=15

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6 0
3 years ago
Read 2 more answers
Write the percent shown by each model. Explain your reasoning.
Sphinxa [80]
A) 1/3=33 1/3%
B) 2/3=66 2/3%
C) 1/6=16 2/3%

A) YOU CAN TURN THE FRACTION 1/3 INTO A DECIMAL WHICH WILL BE AROUND 0.333. THEN YOU TURN THE DECIMAL INTO A PERCENT. YOU CAN MOVE THE DECIMAL TWO PLACES TO THE RIGHT. THAT GIVES YOU 33.3% OR 33 1/3% THIS ALSO APPLIES TO B BUT WITH 0.666 AND 66.6%

FOR C, YOU DO THE SAME. 1/6 AS A DECIMAL IS 1.666. YOU MOVE THE DECIMAL TWO PLACES TO THE RIGHT. 16.6% OR 16 2/3%


HOPE THIS HELPED.
8 0
3 years ago
Evaluate the determinant for the following matrix: [- 5 1 1 4] A. –21 B. 19 C. –17 D. –24
mariarad [96]

Answer:

-21

Step-by-step explanation:

I assume this is a 2 by 2 matrix.

\begin{bmatrix} -5 & 1\\1 & 4 \end{bmatrix}

determinant = -5 * 4  - 1 * 1 = -20 - 1 = -21

6 0
3 years ago
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Another one <br>Topic: Law of Indices<br>Evaluate this;<br><br>(13⁰÷5)²​
Zarrin [17]

<u>Answer:</u>

<h2>1÷25</h2>

<u>Steps:</u>

(13⁰/5)²​

(1÷5)²

1²÷5²

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7 0
3 years ago
Please help!! due today. will give brainiest.
vova2212 [387]

Answer:

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Step-by-step explanation:

Hope this helps ;)

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7 0
3 years ago
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