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Snezhnost [94]
3 years ago
12

Your teacher is giving you a test tomorrow with 2- and 4-point questions for a total of 100 points. The number of 4 points quest

ions is one-third the number of 2-point questions. How many 2- and 4-point questions are on the test?
Mathematics
2 answers:
Vera_Pavlovna [14]3 years ago
3 0

Answer:

25 4-point questions and 75 2-point questions

Step-by-step explanation:

Let x = no. of 4-point questions

Then 3x = no. of 2-point questions

So, x + 3x = 100

4x = 100

x = 25 =  no. of 4-point questions

and 3x =  3(25) = 75 = no. of 2-point questions

Hitman42 [59]3 years ago
3 0

Answer:

2

Step-by-step explanation:

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Write an expression and<br>then solve for x.<br>149​
MatroZZZ [7]
X+52=149 x=97 hope this helped!
3 0
3 years ago
What is the volume of the square pyramid? Round to the nearest tenth.
goldfiish [28.3K]

Answer:

V=718.7\ cm^{3}

Step-by-step explanation:

we know that

The volume of the square pyramid is equal to

V=\frac{1}{3}b^{2}h

we have

b=14\ cm ----> the length of the base of the square pyramid

h=11\ cm ---> the height of the pyramid

substitute the values in the formula

V=\frac{1}{3}(14)^{2}(11)

V=718.7\ cm^{3}

4 0
3 years ago
A = (5)<br> b = (3)<br> Work out 4a + b
malfutka [58]

Step-by-step explanation:

IF A=5, B=3

4*5+3=20+3

         =23

THE ANSWER IS 23

8 0
3 years ago
For what values of K does x2+kx+9=0
Airida [17]

Answer:

k = 6

Step-by-step explanation:

x {}^{2}  + kx + 9 = 0

here,

a = 1,

b = k

c = 9

now,

D = b {}^{2}  - 4ac

k {}^{2}  - 4(1)(9) = 0 \\   k {}^{2}  - 36 = 0 \\ k {}^{2}  = 36 \\ k = 6

4 0
3 years ago
What is property of equality
Sauron [17]

Answer:

Two equations that have the same solution are called equivalent equations e.g. 5 +3 = 2 + 6. And this as we learned in a previous section is shown by the equality sign =. An inverse operation are two operations that undo each other e.g. addition and subtraction or multiplication and division.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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