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katovenus [111]
2 years ago
12

Use substitution to solve the following system of equations. What is the value of y?

Mathematics
1 answer:
siniylev [52]2 years ago
4 0
B in my opinion if I’m wrong I’ll do my equation
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X f(x)
Montano1993 [528]
I would say A hope I helped
8 0
2 years ago
In ΔMNO, the measure of ∠O=90°, the measure of ∠M=74°, and OM = 5.4 feet. Find the length of NO to the nearest tenth of a foot.
torisob [31]

Answer:

140.6 feet

Step-by-step explanation:

gave up on deltamath

8 0
2 years ago
The heaviest dinosaur is estimated to have welghed 2.8 x 10^5 pounds. The average car weighs about 4 x 10^3 pounds.
34kurt

Answer:

  70

Step-by-step explanation:

Apparently, you want the ratio of the weights:

  (dino weight)/(car weight) = (2.8×10^5)/(4×10^3)

  = (2.8/4)×10^(5-3) = 0.7×10^2 = 0.7×100

  = 70

The heaviest dinosaur weighed about 70 times the weight of an average car.

_____

Your calculator can do arithmetic in scientific notation. So can any spreadsheet.

The applicable rule of exponents is ...

  (10^a)/(10^b) = 10^(a-b)

4 0
2 years ago
The sum of a number, n, and a number 5 larger than it is 41. Which of the following equations could be used
Afina-wow [57]
I think it (3) one I’m not sure
3 0
3 years ago
Harvey the wonder hamster can run 3 1/6km in 1/4 hour. Harvey runs at a constant rate
faltersainse [42]

Answer:

his average speed is 12 2/3 kilometers per hour.

Step-by-step explanation:

6 0
3 years ago
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