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anyanavicka [17]
3 years ago
15

Como se hace el calculo de: 12 + 9a + 18b = ----- * ( ---- + 3a + ----- )

Mathematics
1 answer:
nexus9112 [7]3 years ago
8 0

Answer:

3(4+3a+6b)

Step-by-step explanation:

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For the past 25 days, jonathon has read for n minutes each day. His total number of minutes read is 875. Write an equation to ex
liubo4ka [24]

Answer:

Required equation is: 25n = 875

Step-by-step explanation:

Let n be the number of minutes Jonathon read per day

Now

He read for 25 days and total 875 minutes

The equation will be:

25n = 875

We can solve this equation to find the number of minutes each day

Using Division property of Equality

\frac{25n}{25} = \frac{875}{25}\\n = 35

Hence,

Required equation is: 25n = 875

6 0
3 years ago
a ball is thrown into the air with a velocity of 40 ft/s, its height in feet seconds later is given by y=40t-16t^2. a) Find the
Scorpion4ik [409]
V(t) = dy/dt = 40 - 32t
ai). average velocity = (v(0.5) - v(0))/(0.5 - 0) = ((40 - 32(0.5)) - (40 - 32(0)))/0.5 = (40 - 16 - 40)/0.5 = -16/0.5 = -32m / s

ii). average velocity = (v(0.1) - v(0))/(0.1 - 0) = ((40 - 32(0.1)) - (40 - 32(0)))/0.1 = (40 - 3.2 - 40)/0.1 = -3.2/0.1 = -32m / s

iii). average velocity = (v(0.05) - v(0))/(0.05 - 0) = ((40 - 32(0.05)) - (40 - 32(0)))/0.05 = (40 - 1.6 - 40)/0.05 = -1.6/0.05 = -32m / s
5 0
3 years ago
Help please 25 points multiply.
Nataliya [291]

Answer:

When you multiply one positive and one negative, you get a negative solution. When you multiply two negatives, you get a positive solution.

(-564)x(1.4)

-789.6

:)

4 0
2 years ago
PLEASE HELP GUYS!! WILL GIVE BRAINLIEST IF CORRECT!!!!
True [87]

3.114

Step-by-step explanation:

Given slope of the line is 1.581,

Mean of the x-coordinate is 5.923,

Mean of the y-coordinate is 12.478

Equation of the line formula is  

y = mx + c

12.478 = 1.581 × 5.923 + c

⇒ 12.478 = 9.364263 + c

⇒ c = 12.478 – 9.364263  

⇒ c = 3.113737

⇒ c = 3.114 (Round off to three decimal places)

Hence, y-intercepts of the line to three decimal places is 3.114.

8 0
3 years ago
The perimeter of the rectangular base of a monument is 210.5 feet. If the width is equal to its​ length, what are the dimensions
Ann [662]
If width is equal to length then it's a square.
perimeter in this case would be 4x length of each side.
that is( 4 x length)= 210.5
length= width= 210.5/4= 52.62 feet
6 0
3 years ago
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