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bija089 [108]
3 years ago
9

Hurry up pls!!! i need some help quick fast plssss!!!!

Mathematics
1 answer:
inna [77]3 years ago
8 0

Answer:

45

Step-by-step explanation:

9 x 5 = 45

it's a multiplication question

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the second angle in a triangle is five times as large as the first. The third angle is 2/3 as large as the first. What are the a
GrogVix [38]
Hello,
let x the first angle

5x the second
2/3 x the third

x+5x+2/3x=180
==>20x/3=180
==>x=27 (°)
5x=5*27=135
2/3*x=2/3*27=18

27+135+18=180

8 0
3 years ago
Sonia has 4.05 pounds of hamburger meat. She forms hamburgers that weigh 0.25 pounds each. What is the greatest number of 0.25-p
Sphinxa [80]
16 (i believe so)

4.05 divided by 0.25 is 16.2- but you must round to the nearest tenth- you cant make a 0.2 hamburger
7 0
3 years ago
How many years will it take for the area of the glacier to decrease to 15 square kilometers
atroni [7]

Answer:

  20ln(3)

Step-by-step explanation:

Put 15 for A and solve for t.

  15 = 45e^(-.05t)

  15/45 = 1/3 = e^(-.05t) . . . . divide by 45

  ln(1/3) = -.05t . . . . . . . . . . . take natural logs

  20ln(3) = t . . . . . . . . . . . . . . multiply by 20, simplify

It will take 20·ln(3) years for the area to decrease to 15 km^2.

5 0
2 years ago
Help please:) i’m trying to get all of this work completed but i just don’t understand it
leva [86]

\pi r^{2} =\\3,14*4^{2} \\3,14*16\\=50.24

8 0
2 years ago
Read 2 more answers
Find the value of d.<br> 1/2d - 5 -1/4d = 10
Ksenya-84 [330]
D=60. multiply both sides of the equation by 4 since it’s a factor, giving you 2d-20-d=40. since there are like terms with d, collect them to get d-20=40 and move 20 to the right and change it’s sign. that will give you d=40+20, then calculate to get d=60. hope this helped! :)
6 0
2 years ago
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