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Lunna [17]
3 years ago
14

A test has 40 questions. Denise finished 2\5 of the questions in the first 10 minutes and 1\2 of the total questions in the next

15 minutes. How many questions had Denise answered after 25 minutes?
Mathematics
1 answer:
leonid [27]3 years ago
8 0

Answer:

28 questions answered.

Step-by-step explanation:

40(2/5) is 16 questions.

40-16 is 24 questions left.

24(.5) is 12 questions.

16+12 gets you 28 questions.

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For each value of U, determine whether it is a solution,
abruzzese [7]
Given u/7 - 1 = 7 and plugging in values for u,

For u = 28; 28/7 - 1 = 4 - 1 = 3; No
For u = -49; -49/7 - 1 = -7 - 1 = -8; No
For u = 42; 42/7 - 1 = 6 - 1 = 5; No
For u = 0; 0/7 - 1 = -1; No

Another way to find out which value would be a solution to u/7 - 1 = 7 is to solve for u.

u/7 - 1 = 7
u/7 = 7 + 1
u/7 = 8
u = 8*7
u = 56

The only solution to this equation is when u = 56.
8 0
3 years ago
Jane has 3 bags of apples. Each bag has a different number
larisa [96]

Answer:

8 with a remainder of 4

step by step explanation:

6 0
3 years ago
Read 2 more answers
Pls help ASAP find the slope !!
Sedaia [141]

Answer:

4,-4 I think

Step-by-step explanation:

My brain is off right now so might be wrong

3 0
3 years ago
I got 7 but I’m confused
Alja [10]

Answer:

27

Step-by-step explanation:

3v+6=5v-8

3v+14=5v

14=2v

v=7

3*7+6

21+6

27

u were right on 7 u just need to plug it into the equation

5 0
3 years ago
Which of the following best describes the equation below?
Sloan [31]

2(x + 11) + 7x = 9x - 22

mutiply the bracket by 2

(2)(x)= 2x

(2)(11)= 22

2x+22+7x=9x-22

2x+7x+22= 9x-22 ( combine like terms)

9x+22= 9x-22

move 9x to the left side

sign changes from +9x to -9x

9x-9x+22= 9x-9x-22

0+22= 0-22

22= -22

Answer:

C. no real solutions

6 0
3 years ago
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