1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
JulijaS [17]
4 years ago
11

Help! I need work too. I have a test tomorrow and I don't know how to solve this.

Mathematics
2 answers:
sleet_krkn [62]4 years ago
5 0
20        7
----- = ------
100      x

100 x 7 = 700
700/20 = 35
X = 35
professor190 [17]4 years ago
3 0
The answer is 35% put 7/20= n/100 do cross multiplication, 7×100= 700 then do 700/20= 35%
You might be interested in
¿cómo puedo encontrar el valor de x en grados?<br>​
xxMikexx [17]

the answer of

1. x= 60

2. x= 50

7 0
3 years ago
a jar has 170 coins. there are 50 more pennies than nickels. twice as many quarters as nickels. what are the coins?
Amanda [17]
80 pennies 30 nickels and 60 quarters

3 0
3 years ago
Assume that you heat your home with a heat pump whose heat exchanger is at Tc=2∘C, and which maintains the baseboard radiators a
elena-14-01-66 [18.8K]

Answer:

$187.61

Step-by-step explanation:

Data provided:

Temperature of the heat exchanger, Tc = 2° C = 273 + 2 = 275 K

Temperature of the base board radiators , Th=47° C = 273 + 47 = 320 K

Cost of heating the house = $1000

Coefficient of performance of the heat pump = 75% = 0.75

Now,

Actual performance = 75% of performance of heat pump

or

Actual performance = 0.75 × \frac{\textup{Th}}{\textup{Th-Tc}}

or

Actual performance = 0.75 × \frac{320 K}{320-275}

or

Actual performance = 0.75 × \frac{320}{45}

or

Actual performance = 5.33

Therefore, the cost = \frac{\textup{1000}}{\textup{5.33}}

or

cost = $187.61

5 0
3 years ago
Please help me idk this
KiRa [710]

Answer:

x=128

Step-by-step explanation:

x and 52 are supplementary, so they add up to 180°

x+52=180\\x=128

6 0
4 years ago
Read 2 more answers
A rectangular prism has length x+2, width x+1, height 4, and volume 24. Find the length and the width.
just olya [345]
The length is 3 and the width is 2. 3 × 2 × 4 = 24
3 0
4 years ago
Other questions:
  • Write 5.9/100 as a percent
    13·1 answer
  • Draw a rhombus of side 3 cm long and a square of side 3 cm long
    7·1 answer
  • What is the partial quotient of 624 divided by 27
    13·2 answers
  • Can anybody do this sat problem for me? Show your work. (Extra points offered)
    6·1 answer
  • Skew lines are lines that are not contained in the same plane and do not intersect. True or False
    5·1 answer
  • Please please please helpppppp 1.) Explain why the equation (x-3)2 - 40=9 has two solutions. Then, solve the equation to find th
    11·1 answer
  • Juan's puppy currently weighs 80 pounds. This is a 60% increase in weight from when he got her. How much did the puppy weigh ori
    5·1 answer
  • Which expression is equivalent ?
    9·1 answer
  • Simplify the equation​
    8·1 answer
  • Solve the equation: -2x+13=-7x+28
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!