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zalisa [80]
2 years ago
12

Бx +7y = -12 5х – 8y = –10

Mathematics
1 answer:
Lesechka [4]2 years ago
4 0

Answer: 32

Step-by-step explanation:

You might be interested in
Angie and Brian are running a bakery. They are going to make three kinds of banana bread: regular, one with extra sugar, and one
dolphi86 [110]

Answer:

150 regular loaves

125 loaves with extra sugar

100 loaves with extra bananas.

Step-by-step explanation:

Let R represent loaves of regular bread, S represent loaves with extra sugar, and B represent loaves with extra bananas. If they have 1200 bananas, 1050 cups of sugar, and 1075 cups of flour available, the number of each type of bread that Angie and Brian can make are given by the following system of equations:

3R+2S+5B=1,200\\3R+4S+1B=1,050\\2R+3S+4B=1,075

Solving the linear system:

3R+4S+1B-(3R+2S+5B)=1,050-1,200\\2S-4B=-150\\S=-75+2B\\\\3R+2*(-75+2B)+5B=1,200\\2R+3*(-75+2B)+4B=1,075\\3R+9B=1,350\\2R+10B=1,300\\\\3R+9B-1.5*(2R+10B)=1,350-(1.5*1,300)\\9B-15B=-600\\B=100\\2R+10*100=1,300\\R=150\\3*150+2S+5*100=1,200\\S=125

They should make 150 regular loaves, 125 loaves with extra sugar, and 100 loaves with extra bananas.

7 0
3 years ago
Can some help ...:.....0
frozen [14]

Answer:

-4

Step-by-step explanation:

Two legs of the triangle are congruent as shown by the tick marks. This means that this is an isosceles triangle; in an isosceles triangle, the two base angles are also congruent. Which means <A and <B are congruent.

So to solve for x, set 28 and 10x+68 equal to each other.

28=10x+68

First, subtract 68 from both sides

-40=10x

Then, divide both sides by 10

-4=x

If you want to check your answer plug -4 back into the original equation.

28=10(-4)+68

28=-40+68

28=28, which is true, therefore -4 is correct.

7 0
3 years ago
Please Help me with this Click to select the following graphic figure. A square circumscribed about a circle:
Sophie [7]

The answer would be the first image.

Step-by-step explanation:

From context, it appears that to be circumscribed is to be drawn about; thus the square circumscribed about the circle is the first graph.

3 0
3 years ago
Find a counterexample to disprove the conjecture.
Shtirlitz [24]
1 * -1 = -1 which is not smaller than -1
3 0
3 years ago
[30 POINTS] An automobile steering wheel is shown. The ideal mechanical advantage of this wheel and axle = _____ .
arsen [322]

The mechanical advantage is found by dividing Rw by Ra:


Mechanical advantage = 18 / 2 = 9

6 0
3 years ago
Read 2 more answers
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