Need help pls!!! Hurry

Answer:

D) 5

Step-by-step explanation:

a²+b²=c²

12²+b²=13²

144+b²=169

b²=169-144

b²=25

b=√25

b=5

Answer:

a) 9 miles/hour

b) 17.5 miles/hour

Step-by-step explanation:

The formula for speed = Distance (Miles) / Time(hours)

a) he can travel 3/4 of a mile in 5 minutes.

= 3/4 miles = 5 minutes

We convert 5 minutes to hour

= 60 minutes = 1 hour

5 minutes = x

Cross Multiply

60x = 5

x = 5/60

x = 1/12 hour

Hence, his skate speed =

3/4miles /1/12 hour

= 3/4 ÷ 1/12

= 3/4 × 12/1

= 9 miles/hour

b) On his bike, he can travel 3 1/2 miles in 12 minutes.

= 3 1/2 = 12 minutes

= 7/2 miles = 12 minutes

We convert 12 minutes to hour

= 60 minutes = 1 hour

12 minutes = x

Cross Multiply

60x = 12

x = 12/60

x = 1/5 hour

Hence, his skate speed =

7/2 miles /1/5 hour

= 7/2 ÷ 1/5

= 7/2 × 5

= 35/2 miles/hour

= 17.5 miles/hour

Answer:

Whats the problem?

Step-by-step explanation:

Answer:

$6.40

Step-by-step explanation:

13 + 12 + 10 = 35

28 / 35 = 0.8

0.8 * 12 = 9.6

9.6 * 2/3 = 6.4

The money Tammy has now if Sally is 13 years old. Tammy is 12 years old. Danny is 10 years old. Sally, Tammy, and Danny share £28 in the ratio of their ages. Tammy gives a third of her share to her mother is $4.57.

It is the contrast of two different quantities. For instance, if your father weighs 90 kg, and you weigh 30 kg, the weight ratio is 1:3.

Given:

The age of Sally = 13 years,

The age of Tammy = 12 years,

The age of Danny = 10 years,

Then according to the question

13x + 12x + 10x = 28

35x = 28

x = 4 / 7

One-third of Tammy's money = 12 × 4 / 7 ×1 / 3 = 2.285

Money left  = 48 / 7 - 2.285 = 4.57

Therefore, the money Tammy has now, if Sally is 13 years old. Tammy is 12 years old. Danny is 10 years old. Sally, Tammy, and Danny share £28 in the ratio of their ages. Tammy gives a third of her share to her mother is $4.57.

To know more about Ratios:

https://brainly.com/question/13419413

#SPJ2

Answer:

We get that √48 = 2⋅2√3. Lastly, step three says to simplify, so we go ahead and multiply the 2⋅2 outside of the square root to get 4√3. That's it! We get that √48 = 4√3.

Step-by-step explanation:

Answer:

The correct answer is √48 = 4√3.

Answer:

√[(2*2)*(4*6)]

= 4 √6

Step-by-step explanation:

√96.

Sometimes it is better to ‘simplify’ by getting a coefficient multiplied by a smaller number within the radical. Other times, you’re really not simplifying, but making it more complicated. This is probably one of those times where leaving it as √96 is better.

If you had something like √196, you would want to change that form since it turns out that 196 is a perfect square.

Regardless, I’m assuming this is a problem for a class and your teacher/text book wants you to do the following……

You could start by factoring it in small steps within the radical sign.

If you find factors that are perfect squares, you can take them out of the radical.

You can find large factors if you want, but you can also start with small factors.

Probably the easiest number to factor out is 2 since 96 is an even number.

96/2 = 48.

square root 96 radical form

48 is also an even number, so you can factor another 2.

Now you have √[(2*2)*24]

If you can factor out larger numbers, it can save you a little time.

So from here let’s factor out a 4.

√[(2*2)*(4*6)]

= 4 √6

Answer:

what is it about

Step-by-step explanation:

Answer:

Answer is a = -4

3a + 4 = 2a

Subtract 2a from each side

a + 4 = 0

Subtract 4 from each side

a = -4

Step-by-step explanation:

Answer:

a = 1/3g+4/3

Step-by-step explanation:

g=3a−4

Step 1: Flip the equation.

3a−4=g

Step 2: Add 4 to both sides.

3a−4+4=g+4

3a=g+4

Step 3: Divide both sides by 3.

3a /3 = g+4 3

a =  1 /3 g+ 4 /3

Answer:

756 dollars

Step-by-step explanation:

Answer:

$756

Step-by-step explanation:

700×0.08=56

700+56=756

Answer:

1/6

Step-by-step explanation:

The answer is 1/6 because 1/6 multiplied by 2 is 2/6 and 2/6 simplified is 1/3

Answer:

i believe its 1/5

Step-by-step explanation:

i believe so i don't know if it is completly true. hope this helps

Answer:

9

Step-by-step explanation

There is 12 in a dozen, so 3/4 out of 12 is 9. You can get this by doing 3/4 times 12, or .75 times 12.

Hope this helps!

Answer:

9

Step-by-step explanation:

3/4 divided by 12 is 9

plz brainllest

Answer: 1,-1,-7

Step-by-step explanation:

-3-2(-2)= -3+4= 1

-3-2(-1)= -3+2= -1

-3-2(2)= -3-4= -7

Answer: 1.523884e+160

Step-by-step explanation:

Answer:

Dunno. Too much work.

Step-by-step explanation:

Thanks for the points.

Answer:

option 3

Step-by-step explanation:

Using the vertical line test, a function will only he passed through once, option 3 is passed through twice

Answer:

10,164

Step-by-step explanation:

x = 0 and x = 4

To find intersection equate them.

x² - 2x - 4 = 2x - 4

subtract 2x - 4 from both sides

x² - 4x = 0 → (take out common factor x)

x(x - 4 ) = 0 ⇒ x = 0 , x = 4

Step-by-step explanation:

it's answer is 72 percent

Answer:

3.) 10

Step-by-step explanation:

8x-2(x+1) = 7x+8

8x-2x-1=7x+8

6x-1=7x+8

-1=1x+8

+1     +1

1x+9

/x

x=1+9

x=10

Answer:

3(x+3)(3x+x 2 +5)

Step-by-step explanation:

 hope it helps

Answer:

5x^4+18x^3+33x^2+12x−5

Answer:

x=28

Step-by-step explanation:hard to explain maybe look at another response, they would probably do better

Step-by-step explanation:

It's 6r+5y. But it's not in the option

Answer: y=2

Step-by-step explanation:

Answer:

Step-by-step explanation:

Using the given data we can have the equation below to the time:

Answer:

Yes, product means multiply all three, 4*2*7=56

Step-by-step explanation:

Answer:

x = 105

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 7, thus

sum = 180° × 5 = 900°

Sum the interior angles and equate to 900

x + 102 + 165 + 123 + x + 11 + 128 + 161 = 900, that is

2x + 690 = 900  ( subtract 690 from both sides )

2x = 210 ( divide both sides by 2 )

x = 105

Answer:

-5.47

Step-by-step explanation:

–3.86 + 6.82=2.96

4.02-12.45= -8.43

-8.43+2.96= -5.47

Answer:

-52, -69, -89, -100, -124

Step-by-step explanation:

Answer:

-124,-100,-89,-62,-52

Step-by-step explanation:

If the number is a high number and it's a negative it is the least. For example, if you have $-100 in your bank account, that's worse than having $-52. I hope this helps.

Answer:

2.2 more kg

Step-by-step explanation:

0.8+3.95=4.75

6.95-4.75=2.2

hope I helped!!

Answer:

4/5

Step-by-step explanation: