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NikAS [45]
2 years ago
11

A ruler costs pence.

Mathematics
1 answer:
Katarina [22]2 years ago
8 0

Answer:

2x+3(10+x)

Step-by-step explanation:

I'm not sure but I think this might be the answer

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Given the system of equations, what is the value of the system determinant?
weeeeeb [17]
2x + y = 8
x - y = 10
--------------add
3x = 18
x = 6

x - y = 10
6 - y = 10
-y = 10 - 6
-y = 4
y = -4

solution is : (6,-4)
6 0
3 years ago
Read 2 more answers
The graph shows the solution to a system of inequalities:
tangare [24]

Answer:

Option A. 4x+3y\leq 12 and x\geq 0

Step-by-step explanation:

we know that

The solution of the first inequality is the shaded area below the solid line 4x+3y=12

The solid line passes through the points (0,4) and (3,0) (the y and x intercepts)

therefore

The first inequality is

4x+3y\leq 12

The solution of the second inequality is the shaded area to the right of the solid line x=0

therefore

The second inequality is

x\geq 0

7 0
2 years ago
A factory adds three red drops and two blue drops of coloring to white paint to make each pint purple The factory will make 50 g
Radda [10]

30 gallons of red paint  &  20 gallons of blue paint

Step-by-step explanation:

The ratio of red to blue paint drops to make purple paint is 3 : 2

Therefore the total number of gallon, in this case, fifty (50) is equivalent to the total of two ratios (which is 3 + 2 5)

If 5 in the ratio = 50; what about 2  & 3

5 = 50

2 = x

After cross multiplication;

5x = 50 * 2

X = 100/5

X = 20

The same for ratio 3

5 = 50

3 = y

5y = 50 * 3

y = 150/5

y = 30

The answer is therefore; 30 gallons of red paint to 20 gallons of blue paint

Learn More:

For more on ratios check out;

brainly.com/question/11662922

#LearnWithBrainly

7 0
2 years ago
1 pol
BigorU [14]
In 3 hours, they could bake 87 birthday cupcakes. If you divid 145 by 5 this gives you 29, and you multiply this by 3 to find how many can be made in 3 hours, which gives you 87:) hope this helps!
8 0
2 years ago
$149 guitar; 29% discount​
Vikki [24]
Divide number of guitars by 100% and multiply into discount given



149/100 x 29

1.49 x 29

43.21



$43.21 had been removed

Therefore $105.79 is the guitar cost after discount



Hope it was useful ☻


5 0
3 years ago
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