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irina1246 [14]
3 years ago
11

3.A + 2B = 94A - 2B-21​

Mathematics
1 answer:
weqwewe [10]3 years ago
8 0

Answer:

{a,b} = {27/8,21/4}. System of Linear Equations entered : [1] -2a + 3b = 9 [2] 4a - 2b = 3. Graphic Representation of the Equations :.

Step-by-step explanation:

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If the discount is 36% and the sale price is $32 what was the original price
jok3333 [9.3K]

Answer:

89

Step-by-step explanation:

100/36= 2.77777778

2.77777778·32 = 88.8888889

89

8 0
3 years ago
Read 2 more answers
What is the volume for a cylinder with a diameter of 10 m and a height of 5 m? use 3.14 for pi
Alborosie

Answer:

V≈1570.8

Step-by-step explanation:

Radius-10

Height- 5

The answer will be V≈1570.8

Hope this helps

7 0
3 years ago
You are on the south side of a river and you need to cross the river in order to get to a campsite. Not
Doss [256]

Answer:

Width of river = 0.25 mile

As length of river is not given , but it is given that  campsite is located 1 mile east upstream, So length of river = 1 mile

Speed of mine in river while going upstream = 3 miles per hour

Speed of current as going Upstream = 1 miles per hour

Now Reduced speed of mine = Speed of mine in river while going upstream - Speed of current as going Upstream

                                              = 3 - 1

                                              = 2 miles per hour

1. There are two ways to reach campsite

(a) either walk 1 mile from starting point in east direction and then swim 0.25 mile in North direction to reach campsite.

Or

(b) From the starting point Considering a right triangle having, base=1 mile and altitude = 0.25 mile, then finding the length of hypotenuse using formula = \sqrt{(altitude)^2 + (Base)^2

=\sqrt{.25^2+1^2}

=√1.0625

=1.03078(approx)

⇒ you must walk a distance of 1 mile in the east direction and then swim 0.25 mile north direction to reach directly at campsite.[shown in the diagram]



7 0
3 years ago
Give a rule of the​ piecewise-defined function. Give the domain and the range.
dimulka [17.4K]

Answer:

Hello your question is incomplete below is the complete question

option B is correct  

f(x) = 1 if x ≤ 0

       -2 if x > 0

Step-by-step explanation:

The Rule of the piece-wise-defined function is :

from the given figure attached it can be seen that as : x ≤ 0 , y = 1

while for x > 0 , y = -2

therefore option B is correct  

f(x) = 1 if x ≤ 0

       -2 if x > 0

3 0
3 years ago
Which correctly renames 7/8 and 5/6 using a common denominator
OlgaM077 [116]
Common denominator is going to be 24
8=2*2*2
6=2*3
24=2*2*2*3

8 should be multiplied by 3
6 should be multiplied by 4
7/8=(7*3)/(8*3)=21/24
5/6=(5*4)/(6*4)=20/24
7/8=21/24
5/6=20/24
8 0
3 years ago
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