3 years ago

I need help please.

Mathematics

1 answer:

ivann1987 [24]3 years ago

3 0

Answer: 96.77

Step-by-step explanation:

You might be interested in

Valentina purchased 200 beads for $48 to make necklaces. If she needs to buy 25 more beads, how much will she pay if she is char

meriva

$\frac{200}{48} = \frac{25}{x} \\ \\ 200x=48 (25) \\ \\ 200x =1200 \\ \\ \boxed {x=6}$

It would cost her $6

5 0

3 years ago

I don’t understand this question

Arada [10]

Step-by-step explanation:

step 1. a polynomial must have whole non negative exponents

step 2. A, B, D have negative exponents

step 3. C is a polynomial.

3 0

3 years ago

A plane can fly 290 miles downwind in the same amount of time as it can travel 220 miles upwind. Find the velocity of the wind i

nikitadnepr [17]

Answer:

The speed of the wind is $35\ mph$

Step-by-step explanation:

Let

x-----> the speed of the wind in mph

we know that

Downwind

$(255+x)=\frac{290}{t}$

$t=\frac{290}{(255+x)}$ -----> equation A

Upwind

$(255-x)=\frac{220}{t}$

$t=\frac{220}{(255-x)}$ ----> equation B

equate the equation A and the equation B

$\frac{290}{(255+x)}=\frac{220}{(255-x)}\\ \\290(255-x)=220(255+x)\\ \\ 73,950-290x= 56,100x+220x\\ \\220x+290x=73,950-56,100\\ \\510x=17,850\\ \\x= 35\ mph$

7 0

3 years ago

Which of the following is equal to 4/7 - 4/7 . 0 . 1 . Undefined . 1/7

julia-pushkina [17]

Answer:

0 is the answer

Step-by-step explanation:

4-4=0

7-7=0

4 0

3 years ago

The cozy cat shop has 3 calico cats for every gray cat .If they have 9 calico cats available , how many gray cats do they have

maxonik [38]

Answer:

3 gray cats

Step-by-step explanation:

Write and solve an equation of ratios:

3 calico 1 gray

------------ = ------------

9 calico g

Cross multiplying, we get

3g = 9, or g = 3

They have 3 gray cats.

6 0

3 years ago

Read 2 more answers