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seropon [69]
3 years ago
13

Help Me With this question!!!!!!!!!! please

Mathematics
1 answer:
lara31 [8.8K]3 years ago
6 0

Answer:

6

Step-by-step explanation:

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How many liters of a 10% antifreeze solution and a 40% antifreeze solution must be mixed to make 15 liters of a 25% solution? Ro
butalik [34]

Answer:

7.5 liters of a 10% antifreeze solution AND

7.5 liters of a 40% antifreeze solution

Step-by-step explanation:

According to the question,we were asked to find out how many liters of 10% anti freeze solution and 40% anti freeze each to make a 15 liters 25% mixture

Let’s call

the amount of liters needed of our 10% solution “x”. So, how

many liters do we need of the 40% solution? Well, there are 15

liters in total, x liters have been spoken for, so what remains

of our allotted 10 liters then, is 15-x.

Now let's solve for "x"

10% of x + 40% of (15 - x) = 25% of 15 liters

0.1x + 0.4(15 - x) = 0.25(15)

0.1x + 6 - 0.4x = 3.75

Collect the like terms and we have

0.3x = 2.25

x = 2.25 × 3

X = 7.5(Liters for the 10% anti freeze solution)

The 40% solution= 15 - 7.5 = 7.5 liters

Since "X" was used to fill for the unknown amount of 10% anti freeze solution,we have 7.5 liters of the 10% solution and another 7.5 liters for the 40% solution to end up with 15 liters of the desired 25% solution.

8 0
3 years ago
A triangular bandana has an area of 74 square inches. The height of the triangle is 9 1 4 inches. Enter and solve an equation to
Lilit [14]
Hi there!

The formula for the area of a triangle is A = 1/2(b x h). Using the information provided, all we have to do is plug in what we know and solve!

WORK:
74 = 1/2(b x 9.14)
148 = b x 9.14
b = 16.2 inches (approximately)

Hope this helps!! :)
6 0
3 years ago
Can some one answer this question please show work
Lera25 [3.4K]

When you reflect across the Y axis, the Y value remains the same and the x value becomes opposite.

Answer: (5,-3)

4 0
2 years ago
Make a subject of r = square root of a / 3
hodyreva [135]
Multiply both sides by 3 to get:

3r = sqrt(A)

Square both sides:

9r^2 = A
4 0
3 years ago
Draw and use algebra tiles to solve the equation.<br><br> 2x - 3 = 5
Molodets [167]

Answer: x=4

Step-by-step explanation: Add 3 to both sides,  Divide both sides by 22

3 0
2 years ago
Read 2 more answers
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