3 years ago

Estimate. Them multiply. Use your estimate to check your answer. For 18×8

Mathematics

1 answer:

frez [133]3 years ago

7 0

Answer:

120

Step-by-step explanation:

18x8 is 124 but if you estimate then it is 120 bc 4 or less let it rest 5 or more add one more.

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Five dollars is what quarters

defon

The awnser is 20 quarters

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3 years ago

Which equation represents the same line as the points in the table

vodomira [7]

Answer:

$y=\frac{-3}{4} x+2$

Step-by-step explanation:

First, we can find the slope using the slope equation and two of the points.

Slope equation:

$m=\frac{y2-y1}{x2-x1}$

I'm going to use the first two points just so I can avoid the fraction... Substitute the x and y values into the equation.

$m=\frac{2-5}{0--4}$

Simplify:

$m=\frac{-3}{4}$

Now that we have the slope, all we need is the y-intercept. Luckily, it gives it to us in the table. The x value of y-intercepts will always be 0. Looking at the table, we see that the point where x=0 is (0,2). Thus, the y-intercept is 2. Your final equation is

$y=\frac{-3}{4} x+2$

7 0

3 years ago

Read 2 more answers

Bag contains 5 blue, 12 black, 6 red, and 7 green marbles. If one marble is chosen at random the probablity that it is NOT blue

Alex Ar [27]

Answer:

D. 5/6

Step-by-step explanation:

There are 30 marbles

If you add the black, red, and green marbles together, you get 25

25/30 is equivalent to 5/6

3 0

2 years ago

Find the length of the third side. If necessary, write in simplest radical form. 9 5

tigry1 [53]

Step-by-step explanation:

$(9) {}^{2} = (5) {}^{2} + (x) {}^{2} \\ 81 = 25 + {x}^{2} \\ {x}^{2} = 56 \\ x = 2 \sqrt{14} = 7.4$

7 0

3 years ago

Solve the equation (0) 36 (6) O A * = 8 O B x=7 0 CX=512 0 D 3

liraira [26]

Answer

A.x=8

1/3x-2/3x=2

x-2=6

x=6x2

x=8

4 0

3 years ago