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Phoenix [80]
3 years ago
15

Rosa can run 4 miles in 56 minutes.How many miles does rosa run if she runs 42 minutes?

Mathematics
2 answers:
Alex Ar [27]3 years ago
6 0
Rosa runs 3 miles in 42 minutes.

I divided 42 by 56 to get the percentage that will be multiplied to 4 miles to get the number of miles Rosa runs in 42 minutes.

42 / 56 = 0.75 * 100% = 75%

75% * 4 miles = 3 miles.

3 miles within 42 minutes
Furkat [3]3 years ago
5 0
Rosa can run 3 miles
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Tony collected 16.2 pounds of pecans from the trees on his farm. He will give the same weight of pecans to each of 12 friends. H
netineya [11]

Answer:

1.35 pounds each

Step-by-step explanation:

16.2 divided by 12 equals 1.35

6 0
2 years ago
-x^2+4x-8 <br>axis of symmerty​
V125BC [204]

Answer:

\boxed {\boxed {\sf x=2}}

Step-by-step explanation:

The axis of symmetry can be calculated using the formula:

x=\frac{-b}{2a}

First we must determine a and b from the quadratic: -x^2+4x-8. This is in standard form, with the highest power first in descending order.

Standard form is also: ax^2+bx+c

If we compare this to the quadratic given, we can conclude that:

a= -1 \\b= 4 \\c= -8

Substitute the values for a and b into the formula.

x= \frac{-(4)}{2(-1)}

Multiply in the denominator.

x=\frac {-4}{-2}

Divide.

x=2

This can also be determined from the graph. It is the x-coordinate of the vertex or the maximum/minimum. It divides the quadratic into 2 symmetrical halves.

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=3.4%20%5Ctimes%204.37" id="TexFormula1" title="3.4 \times 4.37" alt="3.4 \times 4.37" align="a
shusha [124]

Hello!

<u><em>Answer: =14.858</em></u>

Explanation:

Multiply by the numbers. Product it can also multiply by the numbers, fractions, decimals, factors, and multiples.

3.4 it has one decimal place.

4.37 it has two decimal place.

So, the answer it should be have a three decimal places.

3.4*4.37=14.858

Hope this helps!

Thanks :)

-Charlie

8 0
2 years ago
Read 2 more answers
What is 20% of a $58 bill?
tekilochka [14]
20% of 58 = 11.60
so $11.60 is the answer
7 0
2 years ago
Read 2 more answers
Let A and B be two sets. For each of the following equalities, say whether the quality is always true, never true, or sometimes
lions [1.4K]

Answer:

hello your question is incomplete below is the missing parts

(a) A\ (A\B) = B\(B\A)

(b) A\ (BA) = B\(A\B)

answer : A\ (A\B) = B\(B\A) = always true

               A\ (BA) = B\(A\B) = sometimes true and sometimes false

Step-by-step explanation:

(a) A\ (A\B) = B\(B\A). = ALWAYS TRUE

using de Morgan's law to prove this

A\ (A\B) = A\ ( A ∩ B^c )

             = A ∩ ( A^C ∪ B )

             = ( A ∩ A^C ) ∪ ( A ∩ B )

             = Ф ∪ ( A ∩ B )

             = ( A ∩ B )

ALSO : B\(B\A) = attached below is the remaining parts of the solution

B) A\ (BA) = B\(A\B) = Sometimes true and sometimes false

attached below is the prove using De Morgan's law

8 0
3 years ago
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