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mixas84 [53]
4 years ago
15

Evan, Claire, Jaya and Tim are running a 3km relay race.

Mathematics
1 answer:
Kruka [31]4 years ago
5 0

Answer:

Tim needs to finish 59/90

Step-by-step explanation:

Add together what Evan Claire and Jaya ran  

9/10 + 7/9+ 2/3

The common denominator is 90

9/10 (9/9) +7/9 *10/10  + 2/3 *30/30

81/90 + 70/90 + 60/90

211/90

We need 3 km = 3 *90/90 = 270 /90

270/90 - 211/90 = 59/90

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denis-greek [22]
A. first total salary (S) is what is being found so put that on one side of the equal side, then 100 dollars are being made and this is not changed so we don't need a variable, put that on the other side of the equal sign.  and since sales (X) is changing, keep the variable, 30% of that is added to the salary, so multiply that by x (first turn it into a decimal, divide it by 100) and add that to the initial 100

S=100+.3X

B. do the same thing above but with a new decimal and initial salary

S=150+.15X

C. since they both need to be equal (S=S) you can replace the S on one equation with the other

100+.3X=150+.15X
4 0
3 years ago
Write an expression that represents the difference of t and 8
alisha [4.7K]
Hey there!

Here is your answer:

<u><em>The proper answer to this question will be "t-(8)".</em></u>

Reason:

<u><em>Look at the way the question is worded the word "difference" will mean its subtraction, and t would go first since its in the question and it goes first: t-8=! T representing the variable so you can add ( around the 8 so...  t - (8)=.....</em></u>

<em>Therefore the expression should be t - ( 8 ) =</em>

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit
5 0
3 years ago
HELP ME PLEASE URGENT
Yuki888 [10]

Answer:

Scale factor is 2.5

Value of X: 27.5

Value of y: 12

Value of z: 7.5

Step-by-step explanation:

Okay so. A scale factor is the number by which the shape is increasing, or decreasing by. Like if a square went from 5 cm on all sides to 10 cm on all sides, the scale factor would be 2. This shape has been rotated, so you want to rotate it back so the sides match up when you compare them. The only two sides with a number (without a variable) are 8 and 20, for 8 to be able to get to the number 20, it had to be multiplied by 2.5. To get all the other sides answers, you need to multiply any numbers by 2.5 if it the shape of the left, if it is the shape on the right you need to divide it by 2.5.

3 0
3 years ago
I need help fast !!Please reply asap
Harrizon [31]

Answer:

4x+3y= -2

Step-by-step explanation:

rise over run

right or up = positive

left or down = negitive

you go up 3

you go right 4

4-6= -2

4x+3y= -2

3 0
3 years ago
Read 2 more answers
-2 - 7= -23 help me solve thank u​
BaLLatris [955]

Answer:

2.5555555555555556

Step-by-step explanation:

-2-7=-9

-23/-9=2.5555555555555556

6 0
4 years ago
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