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kkurt [141]
3 years ago
7

Solve for x. Question 1* 21 - 3x = -7 – 10x = x = Your answer

Mathematics
1 answer:
NARA [144]3 years ago
6 0

Answer:

x = -4

Step-by-step explanation:

21 - 3x = -7 - 10x

7x = -28       (divide both sides by 7)

x = -4

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What is an equation of the line that passes through the point
Keith_Richards [23]

Answer:

5x - 4y = 32

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

5x - 4y = 36 ( subtract 5x from both sides )

- 4y = - 5x + 36 ( divide all terms by - 4 )

y = \frac{5}{4} x - 9 ← in slope- intercept form

with slope m = \frac{5}{4}

Parallel lines have equal slopes, thus

y = \frac{5}{4} x + c ← is the partial equation

To find c substitute (8, 2) into the partial equation

2 = 10 + c ⇒ c = 2 - 10 = - 8

y = \frac{5}{4} x - 8 ← in slope- intercept form

Multiply through by 4

4y = 5x - 32 ( subtract 4y from both sides )

0 = 5x - 4y - 32 ( add 32 to both sides )

32 = 5x - 4y, that is

5x - 4y = 32 ← in standard form

4 0
3 years ago
Read 2 more answers
Karen has already knit 15 centimeters of scarf, and can knit 1 centimeter each night. After
Tems11 [23]

Answer:

I think it is 38 centimeters.

Step-by-step explanation:

7 0
3 years ago
Estimate 92.49 - 63.854 by first rounding each number to the nearest whole number.
san4es73 [151]
92.49 -63.854 ≈ 92 -64 = 28

____
Actual difference is 28.636.
8 0
3 years ago
Write an inequality for the following situation
jeka94
No more means less or equal.So, correct answer is <span>A. x ≤ 8 .</span>
8 0
3 years ago
Find two consecutive even integers such that four times the first plus three times the second is 20
Mila [183]
2 consecutive even integers : x and x + 2

4(x) + 3(x + 2) = 20
4x + 3x + 6 = 20
7x + 6 = 20
7x = 20 - 6
7x = 14
x = 14/7
x = 2

x + 2 = 2 + 2 = 4

so ur first number (x) = 2 and ur second number (x + 2) = 4
8 0
3 years ago
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