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ra1l [238]
3 years ago
13

PLEASE HURRY

Mathematics
1 answer:
fomenos3 years ago
5 0
About xz10 days.
Explanation:
The equation used to solve this problem is
288= 20x + 90

You have to solve for x, which in this case is 9.9 days. In reality, you cannot read something in 0.9 days, so we add another day. In this case, Sumaya will finish the book in 10 days.
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Please explain how to do this system of equations 2y=6x+10 y=2x+4
Serjik [45]

Answer:

x=-1, y=2

Step-by-step explanation:

Given:

2y=6x+10

y=2x+4

Substitution for y into first equation:

2(2x+4)=6x+10

4x+8=6x+10

0=2x+2

2x=-2

x=-1

y=2(-1)+4

y=2

4 0
3 years ago
Wren has a 30% chance of being selected as the president of the school sports club and a 80% chance of being elected editor of t
SashulF [63]
Multiply the two probabilities together to get the answer. 3/10 ×8/10 = 24/100 or 24 %
3 0
4 years ago
Read 2 more answers
Sandra just finished planting avacados,
Elena L [17]

Answer:392.5

Step-by-step explanation:

50/2=25

25*25=625

625*3.14=1962.5

1962.5/5=392.5

8 0
3 years ago
Find the volume of a right circular cone that has a height of 7.4 in and a base with a diameter of 5.4 in. Round your answer to
JulijaS [17]

Answer:

approximately 56.51 cubic inches

Step-by-step explanation:

volume of a cone = 1 / 3 × pi × radius^2 × height

= 1/3 × 22/7 × 7.29 × 7.4

= 56.5148 cubic inches

8 0
3 years ago
A certain virus is dying off at a rate of 18% per hour. Initially there were
djyliett [7]

Answer:

3 strain would still alive after 48 hours

Step-by-step explanation:

Initial population of virus = 40000 grams

A certain virus is dying off at a rate of 18% per hour.

We are supposed to find  how much of the  strain would still be alive after 48 hours

Formula : N(t)=N_0(1-r)^t

N_0=Initial population

N(t)= Population after t hours

r = rate of decrease = 18% = 0.18

t = time = 48 hours

So,the  strain would still be alive after 48 hours=40000(1-0.18)^{48}=2.91 \sim 3

Hence 3 strain would still alive after 48 hours

3 0
4 years ago
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