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
oksano4ka [1.4K]
2 years ago
12

PLEASE PLEASE HELP THANKS SO MUCH

Mathematics
2 answers:
yawa3891 [41]2 years ago
7 0

Answer:

a=12

b=9

Step-by-step explanation:

b=0.75a

a+b=21

a+0.75a=21

1.75a=21

a=12

a+b=21

12+b=21

b=9

ruslelena [56]2 years ago
5 0

Answer:

a= 12

b= 9

I hope this helps

You might be interested in
PLEASE MATH HELP WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
andrew11 [14]

the correct answer should be c

5 0
3 years ago
Describe the sequence of translation used to move figure 1 onto figure 2
Mamont248 [21]
The shape moved over 10 and up three. Is this what you’re looking for?
8 0
3 years ago
lillian drew a scale drawing of a county park. the scale she used was 1 inch : 4 yards. the picnic area is 80 yards wide in real
dangina [55]

The picnic area is 20 inches wide in the drawing in her scale of 1 inch : 4 yards.

<h3>What is unitary method ?</h3>

Unitary method is a technique for first solving the value of a single digit unit and from there we can find the value of any given unit.

According to the given question lillian drew a scale drawing of a county park. the scale she used was 1 inch : 4 yards.

The picnic area is 80 yards wide in real life.

∴ The width of the picnic area in here drawing in inches will be

= 80/4 inches.

= 20 inches.

learn more about unitary method here :

brainly.com/question/21648365

#SPJ4

4 0
2 years ago
The ordered pair (x+2,y-3) indicates a translation which moves the pre image
yarga [219]
I think it's the first one. Two units right and three units down.
7 0
3 years ago
Smo answer these and show work plz
suter [353]

Answer:

Step-by-step explanation:

1) multiply the three dimension

V = 7 x 2 x 4 = 56 cm^3

2)  find the base area

base area = (9 x 3)/2 = 13,5 km^2

multiply the base area for the height

V = 13,5 x 5 = 67,5 km^3

3) find the trapezoid area

trapezoid area = [(base 1 + base 2) x h]/2 = [(4+6) x 1.7]/2 = 8.5 cm^2

mutiply the trapezoid area for the height that the priam would assume if the base will touch the ground

V = 8.5 x 4 = 34 cm^3

4) find the base area

base area = radius^2 x pi = 2^2 x pi = 12,57 yd^2

multiply the base area for the height

V= 12.57 x 6 = 75.40 yd^3

5) find the base area

base area = 9^2 x pi = 81 x pi = 254.47 ft^2

multiply the base area for the height

V = 254.47 x 5 = 1272.35 ft^3

6)  multiply the three dimensions

V = 12 x 11 x 9 = 1188 yd^3

7) find the trapezoid area

trapezoid area = [(12+6) x 6.3]/2 = [20 x 6,3]/2 = 63 in^2

mutiply the trapezoid area for the height that the priam would assume if the base will touch the ground

V = 63 x 16 = 1008 in^3

8) find the base area

base area = (leg1 x leg 2)/2 = (4 x 3)/2 = 6 m^2

multiply the base area for the height

V = 6 x 9 = 54 m^3

4 0
3 years ago
Read 2 more answers
Other questions:
  • In a paragraph, explain whether or not all geometric sequences are exponential functions.
    13·1 answer
  • HELPPP I DONT GET THISSS
    9·2 answers
  • A painter uses 2.75 gallons of paint per hour. How many gallons of paint will the painter use in 3.5 hours?
    9·2 answers
  • A student solves the multiplication problem correctly.
    14·2 answers
  • Write the standard form of the equation of the circle of radius r=6 and center (h,k) = (0,0).
    11·1 answer
  • What is the area of this triangle?
    11·1 answer
  • Ryan collected data from a random sample of 700 students in his university asking whether or not they exercise more than 30 minu
    12·1 answer
  • Can someone please help me with math.
    14·1 answer
  • Module 2 - Lesson 23<br><br> 9152/29 ANSWER IT FAST PLEASE
    8·1 answer
  • Click on file! please help, thank you!! &lt;3​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!