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
skelet666 [1.2K]
4 years ago
12

What is 5d=470 and what is 8a=47

Mathematics
2 answers:
Igoryamba4 years ago
8 0
5d=470:

in this case we have to divide both sides by 5:

d=94

8a=47:

in this case we have to divide both sides by 8:

a=5.875

as a general rule, if you want to find out a value of a in
ab=c

you have to divide both sides of the equation by b (if it's not zero); then you will have left:

a=c/b

and if you calculate c/b, this will give you the answer


Gre4nikov [31]4 years ago
5 0
5d= 470 \\ \\ d=470:5 \\ \\ \boxed{\boxed{d= 94}} \\ \\ 8a=47 \\ \\ a=47:8 \\ \\ \boxed{\boxed{a=5.875}}
You might be interested in
in her kayak bunny can travel 70 miles downstream with the current in 5 hours. the return trip against the current takes 7 hours
Alinara [238K]

9514 1404 393

Answer:

  • kayak: 12 mph
  • current: 2 mph

Step-by-step explanation:

Bunny's rate downstream is ...

  (70 mi)/(5 h) = 14 mi/h = k + c

Bunny's rate upstream is ...

  (70 mi)/(7 h) = 10 mi/h = k -c

The kayak speed is the average of these:

  (14 mi/h +10 mi/h)/2 = ((k +c) +(k -c))/2

  (24 mi/h)/2 = 2k/2

  12 mi/h = k

Then the current speed is ...

  c = k -10 = 12 -10 = 2 . . . . mi/h

The still-water speed of the kayak is 12 mi/h; the speed of the current is 2 mi/h.

_____

<em>Additional comment</em>

World-class kayak paddlers will not maintain a speed more than 8 mi/h for that distance and/or time (140 miles in 12 hours). Bunny is exceptional.

4 0
3 years ago
NEED HELP PLEASE IM BEGGING YOU PLEASE!!!!!<br> NEED HELP WITH BOTH PLEASE
UkoKoshka [18]

Answer:

14) F

15) D

Step-by-step explanation:

14

You have 80 minutes on a CD, minus the time you burned would equal the time you have left on the CD.

15

To find mark down, you multiply the percentage to the original price, and then subtract the answer to the original price.

8 0
4 years ago
A backyard is 40.5 feet long and 25 feet wide. In order to install a pool, the yard needs to be reduced by a scale of 1/3. What
cestrela7 [59]

Answer:The area of the reduced backyard is 112.5 square feet

Step-by-step explanation:

The initial length of the backyard is 40.5 feet long.

The initial width of the backyard is 25 feet wide.

In order to install a pool, the yard needs to be reduced by a scale of 1/3. This means that the new length of the backyard is would be

40.5 × 1/3 = 40.5/3 feet lonng

The new width of the backyard would be

25 × 1/3 = 25/3 feet wide

The backyard is rectangular in shape. Area of a rectangle is length × width. The area of the reduced backyard becomes

40.5/3 × 25/3 = 1012.5/9 = 112.5 square feet

8 0
4 years ago
Read 2 more answers
What is the slope of the line?
Anon25 [30]
2/3 is the slope of the line :)
3 0
3 years ago
Read 2 more answers
Angles T and V are complementary. Angle T has a measure of (2x + 10). Angle V has a measure of 48. What is the value of x?
Pani-rosa [81]

Answer:

x=16

Step-by-step explanation:

Complementary angles add to 90 degrees

T + V = 90

2x+10 + 48 = 90

Combine like terms

2x +58 = 90

Subtract 58 from each side

2x+58-58 = 90-58

2x = 32

Divide each side by 2

2x/2 = 32/2

x = 16

8 0
3 years ago
Other questions:
  • The graph of f(x) = 2x3 – 19x2 + 57x – 54 is shown below. mc018-1.jpg How many roots of f(x) are rational numbers?
    15·2 answers
  • One of the solutions of the system of equations shown in the graph has an x-value of –4. What is its corresponding integer y-val
    13·2 answers
  • Gina has 20 groups of 10 pencils. 137 are sharpened. How many dull pencils does Gina have?
    14·2 answers
  • According to the 2000 U.S. Census Bureau, 49.65% of Texas residents were male. If one Texan was selected at random in 2000, what
    6·1 answer
  • Which statement describes the relationship, if any, that exists between triangle KLM and triangle NPQ? Triangle L K M. Side K L
    12·2 answers
  • Help Me pls its due today pls
    15·2 answers
  • I need to figure out the blue line ??
    5·1 answer
  • The ratio 3/8 to 4/9 has a unit rate of 1/6 true or false
    10·1 answer
  • 1/2 of a bowl of cereal is divided equally between 4 bowls. how much cereal is in each bowl
    12·3 answers
  • The diameter of a circle is 2 kilometers. What is the circle's circumference? d=2 km Use 3. 14 for ​. Kilometers?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!