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Lady bird [3.3K]
4 years ago
7

A test has 20 questions worth 100 points. The test consists of true/false questionsworth 3 points each and multiple choice quest

ions worth 11 points each. How many multiple choice questions are on the test?
Mathematics
1 answer:
Artist 52 [7]4 years ago
7 0
X for number of true/false questions and y for number of multiple choice questions:

3x+11y=100
x+y=20
Solve the system and the answer is 5 multiple choice questions.
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How do you find three consecutive even integers with a sum of -84. Please help!
mote1985 [20]
3 consecutive even integers : x, x + 2, x + 4

x + (x + 2) + (x + 4) = -84.....combine like terms
3x + 6 = - 84.......subtract 6 from each side
3x = -84 - 6
3x = - 90...divide both sides by 3
x = -90/3
x = -30

x + 2 = -30 + 2 = -28
x + 4 = -30 + 4 = -26

so ur 3 numbers are : -26, -28, -30
6 0
3 years ago
Read 2 more answers
I NEED AN EXPLANATION!!
marshall27 [118]

x+23+32+47=180

x+102=180

x=78

O. is the correct answer!!

4 0
3 years ago
9. One box has a surface area of 96 cm2 and a height of 4 cm.
ss7ja [257]

Answer:

2,645

Step-by-step explanation:

I hope this helps and you really are smart

8 0
3 years ago
What is the correct numeral form of this number written in scientific notation 1.5463 × 10 3
hoa [83]
10^3  = 1000 so you multiply the first number by 1000

Answer is  1546.3
7 0
3 years ago
Evaluate the expression when x = –18. x-10/4<br><br> Very confused on how to solve this one.
Amiraneli [1.4K]
Well evaluate means solve . so you just substitute the -18 in place of x you'll get -18-10/ 4

which is -28/4 = -7
5 0
4 years ago
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