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levacccp [35]
2 years ago
7

QRST is a rectangle. Find the length of the diagonals. QS=8x−11 and RT=4x+21

Mathematics
1 answer:
valkas [14]2 years ago
7 0

Answer: they’re both 53

Step-by-step explanation:

i just took the test and it is correct

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2/3 - 4x + 7/2 = -9x + 5/6 apply the properties.. step by step
Nutka1998 [239]

Answer:

x=5/13

Step-by-step explanation:

2/3+7/2=9x+5/6+4x

2/3+7/2-5/6=9x+4x

lcm of 2,3,6=6

2/3=4/6      7/2=21/6       5/6=5/6

4/6+21/6-5/6=9x+4x

30/6=13x

5=13x

x=5/13

8 0
3 years ago
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How to find the surface area of a triangular prism ? Grade 6 style and easiest way possible
matrenka [14]
Alright so
Surface area = (width x height) + (length x width) + (length x height) + (length x side)

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3 years ago
Which of the following combined with the equation −9x + 3y = 12 creates a system of linear equations with no solution?
Mumz [18]

Answer:

Step-by-step explanation:

You can't get an exact answer to this because there are no choices.

Add 9x to both sides.

3y = 9x + 12              Divide by 3

3y/3 = 9x/3 + 12/3    Combine

y = 3x + 4

Now to get anything at all that is parallel to this and providing no answer because there is no intersection of the two lines, just change the 4 to something else. Here's one example

y = 3x + 8

As long as the number in front of the x's is the same, they are parallel with no point in common.

8 0
3 years ago
A pharmacist has 18% bleach solution. How much of this solution and how much water must be mixed together to make 10 liters of a
kkurt [141]
X = the amount of water to add
10 - x = amount of 18% bleach to add

.18(10-x)= .12 x 10
1.8 -.18x =1.2
-.18x = -.6
x = 3 1/3 liters water
therefore 6 2/3 liters bleach

4 0
3 years ago
60 menos 24 cuanto es por fa
alukav5142 [94]
I can't exactly understand what you mean but what I thought you put in the answer is 40
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3 years ago
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