HELP! Please, 15 points!

Answer: x=10 y=5 = 15xy

Step-by-step explanation:

Answer:

u use speed triangle so 32/8=4

so he travelled 4 hours

MARK AS BRAINLIEST

MARK AS BRAINLIEST

Answer:

4 hours

Step-by-step explanation:

1hr=8 kilometers

2=16 kilometers

3=24 kilometers

4=32 kilometers

Answer:

32.39

Step-by-step explanation:

29.99 is 100%

       ?  is 8%

?= 29.99*8/100 about 2.40

so the final cost is the price + tax = 29.99 +2.40= 32.39

Answer:

I'm sorry I don't know the equation, but she walks 3 mph.

Step-by-step explanation:

We know that the answer is asking for speed, which needs both distance and time, so we also need both. Which is where the 9 mph is used. 9 mph means its a difference. b means biking mph, w means walking mph, sooo ----->>> b=w+9, and the difference in the 1st equation is 36, which means the first equation is 4 times larger than the b=w+9, so she walked 48 miles, as well as walked 12 miles in 4 hours. Divide then distances by 4, and you get 12 miles and 3 miles in one hour. Or 12 mph & 3 mph, which fits into 12=3+9. So she walks 3 miles per hour.

Answer:

17.14

Step-by-step explanation:

Answer:

8.1 (i used a calulator)

Step-by-step explanation:

1)in ur calculator put in 35%

2) multiply 35% by 6

3) u should get 2.1

4) add $6+2.1

5) and ur answer is 8.1

Answer:

he is correct because 20% is the same thing as 1/5 amd 1/5 is the same thing as dividing by 5

Step-by-step explanation:

Answer:

-xy+y

Step-by-step explanation:

=2xy-3xy+y

=-xy+y

Answer: The answer is 16y I think

Step-by-step explanation:

Answer: DE is 15 and AB is 6

Step-by-step explanation:

Okay, so when two shapes are similar, that means they are proportional. Look at the sides. Notice how the lengths of each side on the larger triangle are all multiples of the lengths of the smaller triangle (side CE, for example, is 24, and AC is 8 since 24 is 3 times larger than 8, you know that particular side was dilated by 3x).

Since these are similar, but not congruent, you know that the dilation was applied to the entire shape equally. In other words, each side is dilated by 3 or is 300% larger.

So, to find DE, just multiply the corresponding side, BC, by 300%.

5*300% (or just 5*3) is 15. So, DE is 15cm long. Make sense?

For AB, you know the scale factor is 3, so you have to figure what number times 3 will get you 18. Because 6*3 is 18, you know AB has to be 6.

Answer:

5feet by 4/3feet

Step-by-step explanation:

The scale use for a model of kitchen is 1/4 in = 1/2 ft In the model, the kitchen measures 2 1/2 by 2 /3 in. What are actual dimensions of the kitchen.

From the question, we were given the conversation rate of 1/4 in = 1/2 ft In the model,

To get actual dimensions of the kitchen if the kitchen measures 2 1/2 by 2 3 in. Then

✓Let us convert 2 1/2in to feet first= 5/2in as improper fraction.

If 1/4 in = 1/2 ft

5/2in = x ft

Then cross multiply, we have

(5/2×1/2)= 1/4 × X

5/4 = 1/4X

Make X subject of the formula

X= (5/4)/(1/4)

X=5ft.

✓Let us convert 2/3in to feet

If 1/4 in = 1/2 ft

2/3in = x ft

Then cross multiply, we have

1/4×X=2/3×1/2

X=(2/3×1/2)/(1/4)

X=4/3feet

Therefore, the actual dimensions of the kitchen is 5feet by 4/3feet

Answer:

d

Step-by-step explanation:

cause  it is d o.49

Answer:

one solution

Step-by-step explanation:

Answer:

If the equation is in the form, ax + b = c, where x is the variable, you can solve the equation as before. First “undo” the addition and subtraction, and then “undo” the multiplication and division. Solve 3y + 2 = 11. Subtract 2 from both sides of the equation to get the term with the variable by itself.

Step-by-step explanation:

hope this helps, sorry if late

Answer:

1/5

Step-by-step explanation:

A metre is 100cm, thus

20cm/100cm= 1/5

Answer: 8 and 21

Step-by-step explanation:

Answer:

(11x+4)(11x-4)

Step-by-step explanation:

Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b) where a=11x and b=4.

Answer:

(4x − 11)(4x + 11)

Step-by-step explanation:

I got it correct on my test

Answer:

3(2x + 7) = 6(x +4) - 3

<=> 6x + 21 = 6x + 24 - 3

<=> 21 = 21

=> this problem is infinite solution

Step-by-step explanation:

Answer:

Step-by-step explanation:

y=mx+b

m is slope

b is y-intercept

slope is 9/10

y-intercept is 1

Answer:

4 days

Step-by-step explanation:

because Mariana drank 2 pints a day 8 pints are in a gallon so 8 ÷ 2 = 4

The Answer is...

143 over 60

(Decimal: 2.38333)

Answer: $12.61

Step-by-step explanation:

Given : Total cost of meal for 5 people = $52.95

Jenna ordered a dessert for $2.50.

Total cost other 4 need to pay = $ (52.95- 2.50) = $ 50.45

Now , each person will pay [tex]=\$\dfrac{50.45}{4}\approx \$12.61[/tex]

Hence, each of the other person need to pay $12.61 .

Answer:

The stack will be 4.54 feet tall

Step-by-step explanation:

Firstly, we want to write the decimal expression for 2 3/11

That will be 2 + 0.2727

To 2 decimal place, that will be 2.27

Staking the two boxes means we are placing one on the other

So the height of the stack will be 2.27 + 2.27 = 4.54 feet

Given :

One afternoon she dove -7.8 feet.

Her next two dives were each 2 1/8 feet deeper than the dive before it.

To Find :

The depths of her second and third dives.

Solution :

Depth of her second dive,

[tex]d_2=-(7.8+2\dfrac{1}{8})\\\\d_2=-(7.8 + \dfrac{17}{8})\\\\d_2 = -9.925\ feet[/tex]

Depth of her third dive,

[tex]d_3 = -(7.8 + 2\times 2\dfrac{1}{8})\\\\d_3 = 12.05\ feet[/tex]

Therefore, the depths of her second and third dives is -9.925 feet and -12.05 feet.

Hence, this is the required solution.

Answer:

x=1

Step-by-step explanation:

Look at the bottom of the triangle you will see that 1 = x