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3 years ago

Help with 13 and 14 please

Mathematics

1 answer:

mrs_skeptik [129]3 years ago

3 0

13.) To solve, you make and equation for each problem, then you make them equal each other : 50h+75=65h. You have to have both variables in each side so you subtract 50h from both sides and are left with 75=15h. Then you just solve for h. h=5

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What is 64x64? and I know if you use a calculator =)

Savatey [412]

Answer:

4096

Step-by-step explanation:

7 0

3 years ago

A company that offers tubing trips down a river rents tubes for a person to use for $20 and “cooler” tubes to carry food and wat

aivan3 [116]

The group rent 11 river rent tubes and 4 cooler tubes.

Step-by-step explanation:

Rent for river rent tube = $20

Rent for cooler tubes = $12.50

Total spent = $270

Total tubes rented = 15

Let,

x be the number of river rent tube.

y be the number of cooler tubes.

According to given statement;

x+y=15 Eqn 1

20x+12.50y=270 Eqn 2

Multiplying Eqn 1 by 20

$20(x+y=15)\\20x+20y=300\ \ \ Eqn\ 3$

Subtracting Eqn 2 from Eqn 3

$(20x+20y)-(20x+12.50y)=300-270\\20x+20y-20x-12.50y=30\\7.50y=30$

Dividing both sides by 7.5

$\frac{7.5y}{7.5}=\frac{30}{7.5}\\y=4$

Putting y=4 in Eqn 1

$x+4=15\\x=15-4\\x=11$

The group rent 11 river rent tubes and 4 cooler tubes.

Keywords: linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

6 0

2 years ago

Multiply. (3x+2)(2x−5) 6x^2+4x−3 6x^2−10 6x^2−11x−10 6x^2−13x−3

Serjik [45]

Answer: Heyaa! ^^

Your Answer when multiplied is.. 6x²−11x−10

Step-by-step explanation:

6x^2−11x−10

Expand the polynomial using the FOIL method.

- FOIL EXPLANATION -

A handy way to remember how to multiply two binomials.

It stands for "First, Outer, Inner, Last"

- It is the sum of: -

· multiplying the First terms,

· multiplying the Outer terms,

· multiplying the Inner terms, and

· multiplying the Last terms

Hopefully this helps you! ~

6 0

2 years ago

How do u solve this question in the picture

dedylja [7]

1/2 over -2/5 + (-1/4)

10/20 over -8/20 + (-5/20)

1 5/20 + (-5/20)

1

The answer is 1

6 0

2 years ago

Write the missing exponent 8=2

Mila [183]

Answer:

2^3 =8

Step-by-step explanation:

2*2 =4

4*2 =8

2*2*2 =8

2^3 =8

8 0

3 years ago

Read 2 more answers