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expeople1 [14]
3 years ago
8

A ball rolled 81 feet in 3 minutes. What was this ball's average speed, in feet per second?

Mathematics
2 answers:
sineoko [7]3 years ago
6 0

Answer:

.45 ft/per sec

5.4 in

Step-by-step explanation:

60*3=180

81/180= .45 ft/per sec

mario62 [17]3 years ago
5 0

Answer:

i already answered but 0.45

Step-by-step explanation:

You might be interested in
Ayo can someone help me with this real quick
solniwko [45]

Answer:

r = 8

Step-by-step explanation:

6r = 95-47

6r = 48

r = 48/6

r = 8

5 0
2 years ago
Mario has 3.875 liters of juice at the beginning of the day he drinks 2.79 liters during the day how much juice is left over st
katen-ka-za [31]

Answer:

The juice left at the end of the day is 1.085 liters.

Step-by-step explanation:

Juice at the beginning of the day: 3.875 liters

Juice drink by Mario during the day: 2.79 liters

Juice left at the end of the day = Juice at the beginning of the day - Juice drink by Mario during the day

                                                  = 3.875 - 2.79

                                                  = 1.085 liters

7 0
3 years ago
Read 2 more answers
Are the ratios 1:2 and 10:20 equivalent <br><br><br>YES OR NO​
nignag [31]

Answer:

yes

Step-by-step explanation:

10:20=

5 times 2= 10

5 times 4= 20

2:4=

1 times 2=2

2 times 2= 4

1:2

6 0
2 years ago
Read 2 more answers
find the gradient of the line joining (3,7) and (6,9). Hence, find the acute angle it makes with the positive x-y axis​
stiv31 [10]

Answer:

33.7 degrees

Step-by-step explanation:

As we go from (3,7) to (6,9), x increases by 3 and y increases by 2.  Thus, the gradient (slope) of the line connecting these two points is

m = rise / run = 2/3.  Using the slope-intercept formula y = mx + b, we obtain

7 = (2/3)(3) + b, or 7 = 2 + b, so we see that b = 5 and y = (2/3)x + 5.  The y-intercept is (0, 5).

Next we find the x-intercept.  We set y = (2/3)x + 5 = to 0 and solve for x:

(2/3)x = -5, or (3/2)(2/3)x = -5(3/2), or x = -15/2, so that the x-intercept is

(-15/2, 0).  This line intersects the x-axis at (-15/2, 0).

Now look at the segment of this line connecting (-15/2, 0) and (0, 5).  Here x increases by 15/2 and y increases by 5, and so the tangent of the acute angle in question is

tan Ф = 5 / (15/2) = 10 / 15 = 2/3.

Using the inverse tangent function, we get Ф = arctan 2/3, or approx.

33.7 degrees.

I believe you meant "the acute angle it makes with the positive x-axis."​

3 0
3 years ago
C-12=-4show me step by step
AfilCa [17]

Answer:

C = 8

Step-by-step explanation:

Rearrange the equation to make C the subject.

C - 12 = -4

Add 12 to both sides.

C - 12 + 12 = -4 + 12

C = -4 + 12

C = 8

Check it:

C = 8

So substitute the new found value into the original equation:

C - 12 = -4

8 - 12 = -4

-4 = -4

All good.

4 0
3 years ago
Read 2 more answers
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