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Sergio039 [100]
3 years ago
15

a student athlete runs 3 1/2 miles in 30 minutes. A professional runner can run 1 1/4 times as far in 30 minutes. How far can th

e professional runner run in 30 minutes?
Mathematics
2 answers:
Elena L [17]3 years ago
7 0
The professional runner can run 2/3 in 30 minutes
tresset_1 [31]3 years ago
3 0
3 1/2 * 1 1/4 =
7/2 * 5/4 =
35/8 = 4 3/8 miles <==
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I need help on this aswell
Katena32 [7]

Answer:

Graph C

Step-by-step explanation:

Hi there!

The given linear equations are organized in slope-intercept form: y=mx+b where <em>m</em> is the slope of the line and <em>b</em> is the y-intercept, or the value of y when the line crosses the y-axis.

y = 2x + 4

Here, the <em>b</em> value is 4. Therefore, the y-intercept of this line is 4.

y = -3x - 2

Here, the <em>b</em> value is -2. Therefore, the y-intercept of this line is -2.

To identify the graph that models these equations, we just have to look for the graph where the lines cross the y-axis at 4 and -2.

The only graph that does this is graph C.

I hope this helps!

8 0
2 years ago
Find the missing fraction.<br> ___ + 1/16 = 3/2 <br><br> No links!
DochEvi [55]

Answer:

23/16

Step-by-step explanation:

3*8/2*8=24/16-1/16=23/16

7 0
3 years ago
What does "sum" mean in math?
Alexxx [7]
In math the sum means to add
6 0
3 years ago
Read 2 more answers
What is the inverse of f(x)=x^4+7 for x&gt;0 where function g is the inverse of function f?<br> -
Ann [662]

Answer:

g(x) = \sqrt[4]{x-7},~ x\geq 7

Step by step explanation:

y= f(x) = x^4+7\\\\\text{Replace x with y and solve for y:}\\\\~~~~~~~x = y^4 +7\\\\\implies y^4 = x-7\\\\\implies y = \pm\sqrt[4]{x-7}\\\\ \implies f^{-1}(x) = \pm\sqrt[4]{x-7}

7 0
1 year ago
Math
Snezhnost [94]

\qquad \qquad\huge \underline{\boxed{\sf Answer}}

Here's the solution ~

\qquad \sf  \dashrightarrow \: 7.2 + (2x + 0.4)

\qquad \sf  \dashrightarrow \: 7.2 + 2x + 0.4

\qquad \sf  \dashrightarrow \: 7.2 +0.4 + 2x

\qquad \sf  \dashrightarrow \: (7.2 +0.4) + 2x

Therefore, the correct choice is A

3 0
2 years ago
Read 2 more answers
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