7. 21 is what percentage of 30? *

Answers

Answer 1

Answer:

70

Step-by-step explanation:

21/70 is .7 move to the right 2 times so 70%

Answer 2

Answer: 70

:D.............


Related Questions

In a basketball tournament, Team A scored 5 fewer than twice as many points as Team B. Team C scored 80 more points than Team B. The combined score for all three teams was 983 points. Write an equation to represent this scenario using the variable b to represent Team B’s total points.

Translate the scenario.

Team A =
Team B =
Team C =
The equation representing this scenario is
.

Answers

Answer:

Team A = 449

Team B = 227

Team C = 307

Equation is

(2b-5) + b + (b+80) = 983

simplyfying

4b+75 = 983

Step-by-step explanation:

Take 4b+75 = 983

b = (983 - 75)/4 = 227

now

Team A = 5 less than twice as many as team B = 2b - 5 = 2 *227-5 = 454-5= = 449

Team B = b = 227

Team C = 80 more than team B = b+80 = 227+80 = 307

or you can just subtract 983 - (Team A +Team B)

Answer:

Team A = 449

Team B = 227

Team C = 307

Equation is

(2b-5) + b + (b+80) = 983

simplyfying

4b+75 = 983

Step-by-step explanation:

the other persons answer

Makayla borrows $15200. Some is from her friend at 5% annual interest, 2 times as much as that from her bank at 8% , and the remainder from her insurance company at 4%. She pays a total of $968 in interest for the first year. How much did she borrow from each source?

Answers

Answer:

Amount borrowed from friend = 4000

From Bank = 8000

From insurance = 3200

Step-by-step explanation:

Given that:

Amount borrowed = $15200

Let amount borrowed from friend = x

x at 5% = 0.05x

From Bank = 2x at 8% = 0.08*2x = 0.16x

From insurance = 15200 - (x + 2x) at 4%

From insurance = 15200 - 3x at 4% ; (15200 - 3x)* 0.04 = 608 - 0.12x

Interest paid in first year = $968

Simple interest = principal * rate * time

968 =

968 = (0.05x + 0.16x + 608 - 0.12x)

968 - 608 = 0.05x + 0.16x - 0.12x

360 = 0.09x

x = 360 / 0.09

x = 4000

Hence,

Amount borrowed from friend = 4000

From Bank = 2x = 4000 * 2 = 8000

From insurance = 15200 - (4000 + 8000) = 3200

4x – 3y = 11
8x + 2y = 46​

Answers

Answer:

y=-17 x=10

Step-by-step explanation:

4x-3y=11

8x+2y=46

8x-6y-22                                                      8x+2(-17)=46

8x+2y=46                                                     8x-34=46

2y-6y        46-(-22)                                            8x=80

-4y=68

y=-17  x=10

Help come on plzz will give brainliest

Answers

Answer:78.4

Step-by-step explanation:

(74+44+74+100+98+86+72+76+66+94)/10 = 78.4

Select the correct answer. If 20% of a number is 35, what is 50% of that number?

Answers

87.5 is the answer.

PLEASE GUYS JUST HELPPP MEEE PLEASE

Answers

Answer:

Step-by-step explanation:

2. 27

3. 18

Answer:

s o w h a t y o u n e e d t o d o i s

Step-by-step explanation:

what is the equation of the line that has a slope of 0 and passes through the point (4,-3)?

Answers

i simply.. don’t know at all..

I am being timed. Hurry please but take your time.
An unknown fractors is between 0 and 1. Which is true about the equivalent percent and decimal?
A. O The percent and decimal are betwern 0 and 1.
B. O The percent and decimal are greater than 1 and less than 100.
C. O The percent is between 0 and 1, and the decimal is greater than 0 and less than 100.
D. O The percent is greater than 0 and less than 100, and the decimal is between 0 and 1.

Answers

Answer: D. The percent is greater than 0 and less than 100, and the decimal is between 0 and 1.

3 times the sum of one third of a number and 8 is 11

Answers

Answer:

3([tex]\frac{1}{3}[/tex]x+8)=11

Step-by-step explanation:

It says 3 times the sum of one third of a number and 8, so we group that expression into the parentheses. Since there is a key word is, we need to put an equal sign.

Question: 1/10 what is the equivalent percent and decimal?

Answers

Answer:

Decimal: 0.1

Percent: 10%

Step-by-step explanation:

Answer:

0.1 as decimal or 10% as percentage

Evaluate 3(x + 4) + 2x - x2 for x = 5.
O A. O
O B. -4
O C. -12
O D. 40​

Answers

Answer:

[tex]12[/tex] is the answer

Step-by-step explanation:

Given

[tex]x = 5[/tex]

Required

Evaluate

[tex]3(x + 4) + 2x - x^2[/tex]

To answer this question, we simply substitute 5 for x in [tex]3(x + 4) + 2x - x^2[/tex]

[tex]3(x + 4) + 2x - x^2[/tex] becomes

[tex]3(5 + 4) + 2*5 - 5^2[/tex]

[tex]3(9) + 10 - 25[/tex]

Open all brackets

[tex]3*9 + 10 - 25[/tex]

[tex]27 + 10 - 25[/tex]

[tex]12[/tex]

Solve for b.

-9b = 27

Answers

Answer:

b=-3

Step-by-step explanation:

-9b/-9=37/-9

b=-3

Answer:

3

Step-by-step explanation:

Which of the following is the slope of the line passing through the points A(-6, 10) and B(-2, 7)

Answers

Answer:

[tex]m=\frac{-3}{4}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define Points

A (-6, 10)

B (-2, 7)

Step 2: Find slope m

Substitute:                    [tex]m=\frac{7-10}{-2+6}[/tex]Subtract/Add:               [tex]m=\frac{-3}{4}[/tex]

And we have our final answer!

Answer:

[tex]-\frac{3}{4}[/tex]

Step-by-step explanation:

To find the slope of the line, we use the equation [tex]\frac{y_2-y_1}{x_2-x_1}[/tex] when we are given the points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex].

When we plug the points A(-6,10) and B(-2,7) into the equation [tex]\frac{y_2-y_1}{x_2-x_1}[/tex], we get the equation [tex]\frac{7-10}{-2-(-6)}[/tex].

[tex]\frac{7-10}{-2-(-6)}\\= \frac{-3}{4}[/tex]

Therefore, the slope of the line is [tex]-\frac{3}{4}[/tex].

I hope this helps!

Please help
Multiple choice
Will appreciate it if u help!

Answers

Answer:

Linear

Step-by-step explanation:

It's constant. Each X is going up 1 while each Y is going up 80

It cost $3.45 to buy 3/4 lb of chopped walnuts. How much will it cost to buy 7.5 lbs of walnuts?

Answers

Answer:

$34.5

Step-by-step explanation:

Turning the 3/4 into a decimal would be .75, .75 can go into 7.5 10 times. You would multiply 10 by the cost $3.45 and you would get $34.5 for 7.5 lbs of walnuts.

The teacher prepares a tour. Its cost is $246 for her and 5 people to take a day-long guided tour of the Eveglades. How much does the guided tour cost per person, the unit rate?

a
$246
b
$6
c
$24.60
d
$41

Answers

Answer:

its either C or D :)

Are the given lines parallel? Explain your reasoning.
3. x = -1, y = 2
4. x = 0, x= -3
5. y = 1, y = 5

Answers

3: no it’s not, one is horizontal and the other is vertical
4: yes it is, same variable and axis
5: yes it is, same variable and axis


Laura is saving money to buy a bike. She has $52 and is going to save an additional $8 each week. The bike costs $164. In how many
weeks will she have enough money to buy the bike?

Answers

14 weeks
164-52=112
112/8=14

Answer:

I would say 14 weeks.

Step-by-step explanation:

I solved it by subtracting what she already has from the price of the bike. $164-52= 112. Then I divided that by 8 cause she saving $8 a week and you get 14. So in 14 weeks she'll have enough money to buy the bike.

The library has 27 chairs and 5 tables. If the same nur chairs can be placed at each table? Will there be any​

Answers

Answer:

no

Step-by-step explanation:

27 divided by 5 = 5.4 so there would not be enouph

Answer:

Each table will have 5 chairs, with 2 chairs leftover.

Step-by-step explanation:

27 divided by 5 equals 5 with a remainder of 2.

4. Look at these prices.
£8.79
£7.98
£8.97
£7.89
Write the amounts in order. Start with the smallest amount.
£
£
£
£
smallest
largest

Answers

7.89 7.98 8.79 8.97

Julie multiplies 6.27 by 7 and claims the product is 438.9. Explain without multiplying how you know Julie’s answer is not correct. Find the correct answer.

Answers

Answer:

SHe put the decimal point in the wrong spot, it's suppose to be 43.89

Step-by-step explanation:

Answer:

no because 438.9 divided by seven is 62.7

Step-by-step ex

According to your graphing calculator what is the approximate solution to the trigonometric inequality tan(x/4)<1/5 over the interval 0<= x<=2pi radians 

0<=x<0.7896
0<=x<0.9799
0<=x<0.9870
0<=x<1.2249

Answers

The approximate solution to the trigonometric inequality will be 0<=x<0.7896. Option A is correct.

What is the definition of inequality?

Inequality is a sort of equation in which the equal sign is missing. As we will see, inequality is defined as a statement regarding the relative magnitude of two claims.

Given inequality;

tan(x/4)<1/5

x/4 = tan⁻¹(1/5)

0<=x<0.7896

The approximate solution to the trigonometric inequality will be 0<=x<0.7896.

Hence option A is correct.

To learn more about inequity, refer to https://brainly.com/question/20383699

#SPJ2

Answer:

A. 0 <= x < 0.7896

Step-by-step explanation:

EDG

A tree is currently 10 feet tall and grows 2 feet per year

Answers

Answer:

More info

Step-by-step explanation:

I need more info than that please!`

1 feet = 12 inches  

3 feets= 36 inches

8 feets = 96 inches

hope this helps  

Assume the year that it would take to these trees have the same height is : x (years)

 

After x years, type A tree has heigth: 36 +23x (inches)

 

After x years, type B tree has heigth: 96 +17x (inches)

 

We have  36+23x = 96+17x

Solve the equation, we have x=10

 

Conclusion: It will take 10 years to these trees have the same height.

The confidence associated with an interval estimate is called the: Group of answer choices significance precision none of these answers is correct confidence level degree of association

Answers

Answer:

The answer is "confidence interval".

Step-by-step explanation:

The trust period is a set of values that may include confidence intervals unspecified. Whenever a representative selection is collected numerous times, its sample parameter would be a certain percentage of its confidence intervals. It shows how likely the position of a statistical parameter will be estimated.

can u pls help me with this question ​

Answers

Answer:

45 cookies

Step-by-step explanation:

Use a unit rate.

With a unit rate, we find the number of cookies that are baked using 1 scoop.

(30 cookies)/(6 scoops) = 5 cookies/scoop

The rate of 30 cookies to 6 scoops is the same as the unit rate of 5 cookies/scoop.

Now we multiply the unit rate by 9 scoops.

9 scoops * 5 cookies/scoop = 45 cookies

Answer: 45 cookies

Translate the phrase into an algebraic expression.
The product of c and 2

Answers

Answer:

c+2

Step-by-step explanation:

Im not 100% sure I understand what you mean by this but anytime it says and in a statement it means + so c+2 would be the answer.

Explain why the exponent in 3.5 x 10 6 is 6 there are only 5 zeros in 3500000

Answers

Step-by-step explanation:

The given number is 3.5×10⁶. It is written in scientific form. We can first write it into standard form. There is exponent of 10 is 6.

3.5×10⁶ = 3.5×1000000

We can write 3.5 as 35/10

So,

3.5×10⁶ = (35/10)×1000000

= 3500000

One of the zero of 1000000 is divided by 10 at the denominator. Hence, the exponent in 3.5×10⁶ is 6 while there are 5 zeros in 3500000.

Your friend thinks that the equation -3.3 = 21 is a true statement. Is your friend correct? Explain.​

Answers

Answer:No. Step-by-step explanation:Your friend is not correct because -3.3 = -3.3 . And 21 = 21. It is not possible for -3.3 is equal to 21.

Hope this helps!!

What equation has a graph that is parallel to the graph of 2X - Y = -1​

Answers

Answer:

y= 2x

Step-by-step explanation:

Find the slope of the original line and use the point slope fromula y-y1=m(x-x1) to find the line parallel to 2x-y=-1

Original

y=mx+b

y=2x +1

Richard and Teo have a combined age of 31. Richard is 4 years older than twice Teo's age. Write a system of equations. How old are Richard and Teo?

I need to write an equation for this, please help

Answers

Answer:

richard is 22 and teo is 9

Step-by-step explanation:

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