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arsen [322]
3 years ago
5

Brainliest please help!

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
4 0

Answer:

120

Step-by-step explanation:

6 x 6 = 36

6 x 7 = 42

42/2 = 21

21 x 4 = 84

84 + 36 = 120

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Aliyah and her friends are going on a road trip that is 32 3/4 miles long. They have already driven 12 1/2 miles. How much farth
kow [346]

Answer:

They have to drive  20\frac{1}{4} miles more

Step-by-step explanation:

Given:

Total Distance of the road trip = 32 \frac{3}{4} miles

Distance  travelled already = 12 \frac{1}{2} miles.

To Find:

How much farther do they have to drive = ?

Solution:

The distance they have to travel farther = Total distance - distance  travelled

The distance they have to travel farther =  32 \frac{3}{4}  -  12 \frac{1}{2}

=>\frac{128 + 3}{4}  -  \frac{24 +1}{2}

=>\frac{131}{4}  -  \frac{25}{2}

=>\frac{131- 50}{4}

=>\frac{81}{4}

=>20\frac{1}{4}

4 0
3 years ago
(-2x+y=8) minus (5x-y=6)
Hitman42 [59]

Answer:-7x+2y=2

Step-by-step explanation:

(-2x+y=8)-(5x-y=6)

(-2x+y=8)> this side change since it’s negative

(-2x+y=8) - (-5x+y=-6)

-7x+2y=2

6 0
2 years ago
Read 2 more answers
What is an equation for the line that passes through (-2,-3) with a slope of -1/2?
Crazy boy [7]

Answer:

C

Step-by-step explanation:

To write the equation of a line use the point slope form of a line substituting m = -1/2 and the point (-2,-3).

y -y_1 = m(x-x_1)\\y --3=-\frac{1}{2}(x--2)\\y+3 = -\frac{1}{2}(x+2)

Convert to standard form by applying the distributive property and rearranging the terms.

y + 3 = -\frac{1}{2}(x+2)\\y+3 = -\frac{1}{2}x -1\\2y + 6 = -x -2\\x+2y + 6 = -2\\x + 2y = -8

The equation x +2y = -8 is the same equation as 4y + 2x = -16 just doubled----> 2x + 4y = -16

8 0
3 years ago
Which of the following could be the function
Elanso [62]

Answer:D 237x/421x-515

Step-by-step explanation:

8 0
3 years ago
[URGENT]
Blizzard [7]

When you write URGENT the Brainly cops think you may be taking a test.

y = ax² + c thru (-1,4) and (0,8)

Substituting in the coordinates of each point for x and y gives two equations:

4 = a  (-1)² + c

8 = a (0²) + c = c

From the second one we see c=8.  Substituting into the first one,

4= a + 8

a = 4-8 = -4

Answer: a=-4, c=8

Check:

f(x) = -4x² + 8

f(0) = 8, good

f(-1) = -4(1) + 8 = 4, good

5 0
3 years ago
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