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guapka [62]
3 years ago
5

Christopher is taking a multiple choice test with a total of 100 points available. Each question is worth exactly 2 points. What

would be Christopher's test score (out of 100) if he got 10 questions wrong? What would be his score if he got xx questions wrong?
Mathematics
2 answers:
podryga [215]3 years ago
7 0

Answer:

If im not wrong, if every question is 2 points of 100 points in total means that are 50 questions, so if he gets 10 wrong then he would be losing 20 points which his final grade would be 80!

NeX [460]3 years ago
7 0

Answer:

Score with 10 questions wrong: 80

Score with x questions wrong: 100−2x

Step-by-step explanation:

each point is deducted by 2 pts and so, with 10 question, he got an 80.

100 is the availability of the points and 2x means which the points were lost

You might be interested in
Evaluate if a=3, x=2, y=5, and z=4
krok68 [10]

Answer:

Just calculate

3×2×4 ÷ (2×5)

24÷10

=2.4

3 0
3 years ago
PLS HELP :( WILL GIVE BRAINLIEST+ 25 POINTS
crimeas [40]
Your answer is going to be B.3! Hope it helps
3 0
4 years ago
Read 2 more answers
1) A searchlight is mounted on the front of a search and rescue helicopter. The pilot is
julia-pushkina [17]
561 cm because if you do the math mc = square you get that answr your welcome
3 0
3 years ago
19. A carpenter is putting a skylight in the roof. If the roof measures (10x + 9) by (7x + 7) and the skylight measures (x + 5)
velikii [3]
19)  67x²+115x+48
20) (w+8)²
21) (d+11)²
22) (r+7)(r-7)

Explanation:
19)  The area of the ceiling is given by (10x+9)(7x+7).  Multiplying we have:
10x*7x+7*10x+9*7x+9*7
=70x²+70x+63x+63
=70x²+133x+63

The area of the skylight is given by (x+5)(3x+3).  Multiplying we have:
x*3x+3*x+5*3x+5*3
=3x²+3x+15x+15
=3x²+18x+15

To find the remaining area of the ceiling we subtract:
(70x²+133x+63)-(3x²+18x+15)
=70x²+133x+63-3x²-18x-15
=67x²+115x+48

20)  To factor, we want to find factors of c, 64, that sum to b, 16.  8*8=64 and 8+8=16; therefore we have:
(w+8)(w+8)
Since this is the same binomial twice, we write it as (w+8)²

21)  Again we look for factors of c, 121, that sum to b, 22.  11*11=121 and 11+11=22, so:
(d+11)(d+11)
Since this is the same binomial twice, we have (d+11)²

22)  Factors of -49 that sum to 0 (there is no r term, just r²):  -7*7=-49 and -7+7=0, so:
(r-7)(r+7)
6 0
3 years ago
Sam deposits $1,000 into an account that pays 6% simple interest annually. He plans to take the money out after 3.5 years. What
lara31 [8.8K]
Well, the formula for simple interest is 

I=prt

"I" is interest, "p" is the principal, "r" is the rate, and "t" is the time.

If you substitute the numbers, you get

I=1,000(0.06)(3.5)

When you multiply them together, you get 

I=210

So, the simple interest for 3.5 years is $210.

But, in order to get the total balance, you have to add the interest and the principal together.

B=1000+210 \\ B=1210

So, the balance after 3.5 years is $1,210.
5 0
3 years ago
Read 2 more answers
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