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3 years ago

How do you do number 20?

Mathematics

1 answer:

LenKa [72]3 years ago

4 0

The answer isnin the pictures

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What is value of x<br> Enter your answer in the box.

borishaifa [10]

Answer:

x=10

Step-by-step explanation:

Lets use a ratio.

3:2 (12 to 8)

We need to scale the x+4 up 3/2 to be equal to 2x+1

(3/2) x+4 = 2x+1

1.5x+6=2x+1

-1.5x -1.5x

6=0.5x+1

-1 -1

0.5x=5

x=10

4 0

3 years ago

2.) Damian types 110 words in 5 minutes. Howard types 208 words

jekas [21]

Answer:

Step-by-step explanation:

First, divide each persons rate by the number of minutes they typed their words in .

you end up with:

Damian: 55 seconds

Howard: 26 seconds

This tells us that Howard was least and <u>Damian was greater. </u>

Hope this helps :)

6 0

3 years ago

If you help, i give brainliest!

topjm [15]

Answer:

m<E = $77^{o}$

Step-by-step explanation:

From the diagram, ΔACE and ΔBDE are similar. So that comparing its angles, we have;

(8x + 4) = (9x - 5)

8x + 4 = 9x - 5

5 + 4 = 9x - 8x

x = 9

Thus,

(8x + 4) = 8(9) + 4 = 76

(9x - 5) = 9(9) - 5 = 76

3x = 3(9) = 27

From ΔACE,

3x + (8x + 4) + m<E = 180 (sum of angles in a triangle)

27 + 76 + m<E = 180

m<E = 180 - 103

m<E = $77^{o}$

3 0

3 years ago

Which is equivalent to square root 8 to the third power

xz_007 [3.2K]

Answer:

Step-by-step explanation:

IMPORTANT: ∛8ˣ is not the square root of 8³. ∛ means cube root.

∛x = x^(⅓)

8 0

3 years ago

A line passes through the point (-8, 7) and has a slope of negative 3/4Write an equation in slope-intercept form for this line.

Arlecino [84]

Answer:

$y=-\frac{3}{4}x+1$

Step-by-step explanation:

We do not have enough information for slope intercept form. But we can use the point-slope formula to find the information. The formula is $y -y_{1} =m(x -x_{1})$ where we substitute a point (x,y) for $(x_{1},y_{1})$ .

We have m=-3/4 and (-8, 7). We input m and $x_{1} =-8\\y_{1}=7$ .

$y-7=-\frac{3}{4} (x-(-8))\\y-7=-\frac{3}{4} (x+8)$

We now simplify the parenthesis and solve for y.

$y-7=-\frac{3}{4} (x+8)\\y-7=-\frac{3}{4}x+-\frac{3}{4} (8)$

We convert 8 into a fraction with 1 as the denoinator.

$y-7=-\frac{3}{4}x+-\frac{3}{4} (\frac{8}{1} )\\y-7=-\frac{3}{4}x+-\frac{24}{4}\\y-7=-\frac{3}{4}x+-6$

We add 7 to both sides to isolate y,

$y-7+7=-\frac{3}{4}x+-6+7\\y=-\frac{3}{4}x+1$

This is slope intercept form. The line as slope -3/4 and y-intercept (0,1) or b=1.

5 0

3 years ago