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3 years ago

Jesaria can jump rope 42 times in 20 seconds at this rate how many times can she jump rope in a minute

Mathematics

1 answer:

Softa [21]3 years ago

5 0

Answer:

Step-by-step explanation:

Jesaria jump rope 42 times in 20 seconds

So in 01 second jump rate=42/20

In 01 minute (60 second)

she will jump = 42x60/20

=126 times answer

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Name the constant(s) in the expression 7x + 9y + 3

mart [117]

The answer is B. 3

It is the only value not attached to a variable, thus remaining constant.

8 0

4 years ago

What is the sum of series is numbers 64&66 ?<br> Using the summation notation

iragen [17]

Answer:

64. 6138

66. 8.078125

Step-by-step explanation:

Let's take it one number at a time.

For number 64:

$6(2)^{1-1}=6$

$6(2)^{2-1}=12$

$6(2)^{3-1}=24$

$6(2)^{4-1}=48$

$6(2)^{5-1}=96$

$6(2)^{6-1}=192$

$6(2)^{7-1}=384$

$6(2)^{8-1}=768$

$6(2)^{9-1}=1536$

$6(2)^{10-1}=3072$

Sum = 6 + 12 + 24 + 48 + 96 + 192 + 384 + 768 + 1536 + 3072

Sum = 6138

For number 66:

$12(-\frac{1}{2})^{0}=12$

$12(-\frac{1}{2})^{1}=-6$

$12(-\frac{1}{2})^{2}=3$

$12(-\frac{1}{2})^{3}=-1.5$

$12(-\frac{1}{2})^{4}=0.75$

$12(-\frac{1}{2})^{5}=-0.375$

$12(-\frac{1}{2})^{6}=0.1875$

$12(-\frac{1}{2})^{7}=-0.0078125$

$12(-\frac{1}{2})^{8}=0.046875$

$12(-\frac{1}{2})^{9}=-0.0234375$

Sum = 12 + -6 + 3 + -1.5 + 0.75 + -0.375 + 0.1875 + -0.0078125 + 0.046875 + -0.0234375

or to make things simpler:

Sum = 12 - 6 + 3 - 1.5 + 0.75 - 0.375 + 0.1875 - 0.0078125 + 0.046875 - 0.0234375

Sum = 8.078125

4 0

3 years ago

Solve the word problem. The table shows the low outside temperatures for Monday, Tuesday, and Wednesday. What was the change in

den301095 [7]

Answer: D. -3.2

Step-by-step explanation:

The correct answer to this question is D. -3.2 because when you subtract positive 8.8 and positive 12 your answer is -3.2.

(+8.8) - (+12) = -3.2

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3 years ago

What is (f+g)(3) for functions f(x)=2x+210 G(x)=2x+125

sashaice [31]

Answer:

347

Step-by-step explanation:

2(3) + 210 = 216

2(3) + 125 = 131

216+131 = 347

3 0

3 years ago

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What is the graph of the function rule Y= 1/3x - 1 ?

GrogVix [38]

Yes. A is the right graph because the line must travel through two points: (0 ,1)and(-3, 0)

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2 years ago