All categories

3 years ago

Help me please.....

Mathematics

2 answers:

Zinaida [17]3 years ago

8 0

Answer:

uh hm i think... one second

Step-by-step explanation:

trasher [3.6K]3 years ago

6 0

Answer:

17 by 3

Step-by-step explanation:

I am very very smart

You might be interested in

111 is what percent of 300

andrey2020 [161]

100%/x%=300/111(100/x)*x=(300/111)*x 100=2.7027027027*x 100/2.7027027027=x 37=x x=37%

8 0

3 years ago

Noah is buying a pair of jeans and using a coupon for 10%off. The total price is $56.70 which includes $2.70 in sales tax. Noah’

lora16 [44]

Answer:

See below.

Step-by-step explanation:

So, we know that Noah's purchase can be modeled by the equation:

$x-0.1x+2.70=56.70$

Part 1)

The solution to the equation will be the value of x.

In this case, x will represent the original price of the jeans.

We know that Noah has a coupon for 10% off the original price of the jeans.

So, 0.1x will represent how much of the original price Noah gets a a discount on.

Therefore, (x - 0.1x) represents the total cost of the jeans after the coupon.

So, x is our original price of the jeans.

Part 2)

To verify that 70 is not a solution, we can simply substitute 70 for x and check whether or not the equation is true. So:

$(70)-0.1(70)+2.7\stackrel{?}{=}56.70$

Multiply:

$70-7+2.7\stackrel{?}{=}56.7$

Subtract:

$63+2.7\stackrel{?}{=}56.7$

Add:

$65.7\neq56.7$

However, we can verify that 60 is the solution by substituting. So, substitute 60 for every x:

$(60)-0.1(60)+2.7\stackrel{?}{=}5.7$

Multiply:

$60-6+2.7\stackrel{?}{=}56.7$

Subtract:

$54+2.7\stackrel{?}{=}56.7$

Add:

$56.7\stackrel{\checkmark}{=}56.7$

So, 60 is indeed the solution and is the value of x.

So, this means that $60 was the original price of the jeans.

8 0

4 years ago

Read 2 more answers

A hotel charges $90 per day for a double room $80 per day for a single room. If a total of 80 single and double rooms are occupi

SashulF [63]

Answer:

the number of single room is 27 and the number of double room is 53

Step-by-step explanation:

Let x is the number of single room

Let y is the number of double room

We know that:

x + y = 80 <=> x = 80 -y (1)

80x +90y= 6930 (2)

Substitute (1) in (2) we have:

80 (80 - y) + 90y = 6930

<=> 6400 - 80y +90y = 6930

<=> y = 53

> x = 80 - 53 = 27

the number of single room is 27 and the number of double room is 53

4 0

3 years ago

If Ryuk eats 7 apples for every 50 names Light writes in the death note, how many apples will he have eaten after Light writes 5

alex41 [277]

Answer:

70 apples

Step-by-step explanation:

We can use a ratio to solve

7 apples x apples

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

50 name 500 names

Using cross products

7 * 500 = 50x

Divide by 50

7 * 500/50 = 50x/50

70 =x

6 0

3 years ago

Read 2 more answers

i need help i literally don't understand this at all and the teacher doesn't explain the assignment at all.

Sati [7]

Answer:

2) 67.8°

3) 46.8°

4) 56.0°

Step-by-step explanation:

Use the right triangle trig functions

sine, cosine, or tangent and take the inverses to find the angle

4 0

3 years ago

Help me please.....​

Help me please.....