1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
CaHeK987 [17]
3 years ago
9

I need help on how to do this. Please help

Mathematics
1 answer:
Sveta_85 [38]3 years ago
8 0
Hi there! I can help you! To solve this question, we can write and solve a proportion. Candida ran 100 yards in 12.7 seconds and the timekeeper ran 100 yards in 11.4 seconds. Let's start with Candida.  We could solve this by setting up the proportion to make it look like this: 100/12.7 = 220/x. You do this, because we're looking for the amount of time it would take for Candida to run 220 yards. Le'ts cross multiply the values. When you do that, you get 2,794 = 100x. Now, divide each side by 100 to isolate the "x". When you do, you get x = 27.94. x = 27.94. We found Candida's time. Now, let's look for the other person's time. Set up a proportion again. 100/11.4 = 220/x. We are looking for the other person's time. Repeat the steps. Cross multiply the values in order to get 2,508 = 100x. Now, divide each side by 100 to isolate the "x". When you do, you get 25.08. x = 25.08. We found the other person's time. Here are the answers easier to read.

Amount of time to run 220 yards

Candida: 27.94 seconds
Other person's time: 25.08 seconds
You might be interested in
8.
melomori [17]

Answer:

B

Step-by-step explanation:

Communities and associative

5 0
2 years ago
△EFG≅△JKL.<br><br> What is m∠L?
snow_lady [41]
M∠E ≅ m∠J
m∠F ≅ m∠K
m∠G ≅ m∠L

So, m∠ L is 58.
4 0
3 years ago
Read 2 more answers
Brett writes a number that is the same distance from o as 6 on a number line but in the opposite direction. What number did bret
photoshop1234 [79]
Well since 6 would be in the oppposite direction it would be turned around. Well this leads to non than any other number 9.

Answer ~ 9
4 0
3 years ago
How do i convert 37/4 into mixed numbers
IrinaVladis [17]
How many times does (4) go into (37) ?  9 TIMES.

Remainder 1.

So as a mixed number would be 9 whole number, 1/4

= (9 1/4)
4 0
3 years ago
Use matrix addition to solve this equation: B + 15 −7 4 0 1 2 = 1 2 12 4 0 2 b11 = b12 = b13 = b21 = 4 b22 = −1 b23 = 0
Arada [10]

Answer:

b_{11}=-14,b_{12}=9,b_{13}=8,b_{21}=4,b_{22}=-1,b_{23}=0

Step-by-step explanation:

The given matrix addition is

B+\begin{bmatrix}15&-7&4\\ 0&1&2\end{bmatrix}=\begin{bmatrix}1&2&12\\ 4&0&2\end{bmatrix}

We need to find the elements of matrix B.

Let B=\begin{bmatrix}b_{11}&b_{12}&b_{13}\\ b_{21}&b_{22}&b_{23}\end{bmatrix}

Substitute the value of matrix.

\begin{bmatrix}b_{11}&b_{12}&b_{13}\\ b_{21}&b_{22}&b_{23}\end{bmatrix}+\begin{bmatrix}15&-7&4\\ 0&1&2\end{bmatrix}=\begin{bmatrix}1&2&12\\ 4&0&2\end{bmatrix}

After addition of two matrix we get

\begin{bmatrix}b_{11}+15&b_{12}-7&b_{13}+4\\ b_{21}+0&b_{22}+1&b_{23}+2\end{bmatrix}=\begin{bmatrix}1&2&12\\ 4&0&2\end{bmatrix}

On equating both sides.

b_{11}+15=1\Rightarrow b_{11}=-14

b_{12}-7=2\Rightarrow b_{12}=9

b_{13}+4=12\Rightarrow b_{13}=8

b_{21}+0=4\Rightarrow b_{21}=4

b_{22}+1=0\Rightarrow b_{22}=-1

b_{23}+2=2\Rightarrow b_{23}=0

Therefore, the elements of matrix B are b_{11}=-14,b_{12}=9,b_{13}=8,b_{21}=4,b_{22}=-1,b_{23}=0.

3 0
3 years ago
Other questions:
  • Which net folds to make the prism shown?<br><br> 2nd picture has the letter choice
    11·2 answers
  • What is the value of the expression square root of 121?
    6·2 answers
  • For a party in kindergarten balloons of three colors were bought: red, green, and yellow. There were 40 red balloons, the number
    11·1 answer
  • A square with sides of length 5 is positioned inside a square with sides of length 7. What is
    8·1 answer
  • Use the commutative property of addition to simplify 12x - 36 - 6x.
    7·1 answer
  • Carl wrote three numbers between 0.47 and 0.48 What numbers did Carl write?
    9·1 answer
  • In slope-intercept form, what is the equation of the line passing through the points (3, 17) and (7, 25)?
    13·2 answers
  • 16 points + BRAINLIEST if your answer is correct!
    14·1 answer
  • Compare -3.2_-3 by choosing &gt;,&lt;,or =​
    14·1 answer
  • The length of a rectangle is 7 inches longer than it is wide. If the area is 170 square inches, what are the dimensions of the r
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!