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
iogann1982 [59]
3 years ago
10

1. Five more than three times a number is sixty- five.

Mathematics
2 answers:
EleoNora [17]3 years ago
6 0
1)
a. 5+3x= 65
b. 5+3x=65
    3x=65-5
    3x=60
    x=20

2)
a. v= 28 -32t
b. (v=0)
    0= 28 -32t
    32t=28
    t=28/32
    t= 7/8
allsm [11]3 years ago
4 0
1)
Let unknown number be x
3x + 5 = 65
3x = 60
x = 20

Therefore, unknown number is 20.
You might be interested in
On Monday, it took 5 builders 3 in a half hours to build a wall.
mrs_skeptik [129]

Answer:

£83.70

Step-by-step explanation:

→ First step is to find the amount of hours it takes for one builder

We know it takes 5 builders 3\frac{1}{2} hours so 1 builder would take 5 × 3\frac{1}{2} which is \frac{35}{2} hours so it takes one builder 17.5 hours to builder a wall

→ Now we know how long one work takes we need to find out the time for 2 builders

1 builder = 17.5 hours

2 builders = 17.5 ÷ 2 = 8.75 hours

So 2 builders take 8.75 hours

→ We know that each builder is paid £9.30 for each or part hour they work so

9.30 hourly pay rate × 9 hours work of work = £83.70

Each worker will be paid £83.70

6 0
3 years ago
what is the density of a sheet of aluminum that has a volume of 328.4 cubic centimeters and a mass of 780 grams
Nata [24]

Answer:

\large\boxed{density=\dfrac{1950}{821}\ \dfrac{g}{cm^3}\approx2.375\ \dfrac{g}{cm^3}}

Step-by-step explanation:

density=\dfrac{mass}{volume}\\\\\text{We have}\\\\mass=780\ g\\volume=328.4\ cm^3\\\\\text{Substitute:}\\\\density=\dfrac{780g}{328.4\ cm^3}=\dfrac{780\cdot10}{328.4\cdot10}\ \dfrac{g}{cm^3}=\dfrac{7800}{3284}\ \dfrac{g}{cm^3}=\dfrac{7800:4}{3284:4}\ \dfrac{g}{cm^3}\\\\=\dfrac{1950}{821}\ \dfrac{g}{cm^3}

3 0
3 years ago
12.
harina [27]

Answer:

h = 5.705m

Step-by-step explanation:

Volume of a cylinder

V = πr^2h

V - volume of the cylinder

π - pie

r - radius of the cylinder

h - height of the cylinder

Given :

V = 363 cubic meters

d = 9m

h = ?m

d = 2r

d - diameter

r - radius

r = d/2

r = 9/2

π- 3.142

Insert the values into the formula of volume of cylinder

V = πr^2h

363 = 3.142 * (9/2)^2 * h

363 = 3.142 * 81/4 * h

363 = 63.6255h

Divide both sides by 63.6255 to get the value of h

363/63.6255 = 63.6255h/63.6255

5.705 = h

h = 5.705m

8 0
3 years ago
find the coordinates of the orthocenter with vertices at each set of points on a coordinate plane. (3,1) (10,8) (5,13)
HACTEHA [7]

Answer:

The orthocenter of a triangle is the point of intersection of any two of three altitudes of a triangle (the third altitude must intersect at the same spot).

Step-by-step explanation:

Hope this Helped! :)

3 0
3 years ago
What is the answer to −9 ×(−8)
klio [65]

Answer:

-9x(-8)

9x8

=72

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • A survey of 80 students found that 24 students both play in the band and play a sport. But 22 students are not in band and do no
    5·1 answer
  • How many times does 749 go into 7?
    14·2 answers
  • 7 2/3 - 5 5/8<br>how to solve
    13·2 answers
  • One of the tables shows a proportional relationship.
    10·1 answer
  • Solve 2/3 plus 5/6 and put answer in simplest form. A 9/6 B 2/3 C 7/6 D 1 1/2
    12·2 answers
  • 4(8x−1) = 19+32x
    10·2 answers
  • Find the measure of &lt;A​
    9·1 answer
  • Angie is working on a project for her history class. The first half of the project took her 7/12 of an hour. The second half of
    15·2 answers
  • Which of the following numbers is between 0.08 and 0.4?
    5·1 answer
  • Consider the triangle below.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!