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
baherus [9]
3 years ago
13

Solve these [7x+5](8x+3) (3-8x)(4-5x) 2(4x+7)(6x-5)

Mathematics
1 answer:
masha68 [24]3 years ago
7 0

Answer:

107520x6+89344x5−241808x4−55444x3+121478x2+6030x−12600

Step-by-step explanation:

brailiest

You might be interested in
A bee flies at 15 ft./s directly into a flower bed from a time the beast stays at the flower bed for 12 minutes and then flies d
Zinaida [17]

A) The equation that we need to solve is:

(12ft/s)*(- d/(15ft/s) + 300s) = d

B) The distance to the hive is d = 2000ft.

<h3 /><h3>What equation can you use to find the distance of the flower bed from the hive?</h3>

We know that the bee's speed is 15 ft/s from the hive to the flower bed.

Then stays 12 minutes at the flower bed.

Then returns to the hive with a speed of 12ft/s.

The total time of the journey is 17 minutes, discounting the 12 minutes that the bee was in the flower bed, the travel only took 5 minutes.

Now, if the distance between the hive and the flower bed is d, t₁ as the time that the bee needs to go from the hive to the flower bed, and t₂ as the time in which the bee goes from the flower bed to the hive, we can write the system of equations:

t₂ + t₁ = 5min

(15ft/s)*t₁ = d

(12ft/s)*t₂ = d

With that system of equations, we can find the value of d, which is what we want to get.

Isolating t₂ in the first equation we get:

t₂ = - t₁ + 5min

Now we can replace that in the third equation:

(15ft/s)*t₁ = d

(12ft/s)*(- t₁ + 5min) = d

In the first equation we can isolate t₁:

t₁ = d/(15ft/s)

And replace that in the remaining equation:

(12ft/s)*(- d/(15ft/s) + 5min) = d

5 min = 5*60s = 300s

(12ft/s)*(- d/(15ft/s) + 300s) = d

This is the equation we need to solve to find the value of d.

-(12/15)*d + 3600ft = d

3600ft = d + (12/15)*d = (1 + 12/15)*d = (27/15)*d

(15/27)*3600ft = d = 2000 ft

We conclude that the distance to the hive is 2000ft.

If you want to learn more about systems of equations:

brainly.com/question/13729904

#SPJ1

8 0
2 years ago
How do you solve the equation z-2z-3=-7
finlep [7]
Hey, it’s very easy. You just need to do like that:

z-2z-3=-7
z-2z= -7+3
-1z = -4 | : (-1)
z = 4

The answer is 4.
4 0
4 years ago
caitlyn has $210 in her savings account and she has to pay her parents $5 each month.Santos has $90 dollars and he saves $5 doll
nevsk [136]

Answer:

After about 12 months both Caitlyn and Santos will have the same balance of 150 dollars in their bank account.

Step-by-step explanation:

Caitlyn's saving:  -5x+210

Santos' saving: 5x+90

To know when the total amount in their bank account is the same you would need to make these linear equations equal to one another.

-5x+210 = 5x+90

(Add 5x on both sides)

210=10x+90

(Subtract 90 from both sides)

120=10x

(Simplify)

x=12

After about 12 months their total savings should be the same. To check what their balance will be plug the x value of 12 into both of these equations. This should give 150 as your answer for both equations.

5 0
3 years ago
You mix 1 3/4 gallons of blue paint with 1 1/2 gallons of yellow paint to make green paint. How much green paint do you have?
irakobra [83]
IS this blaise weiss and yeuh I think its about 30 feet
3 0
4 years ago
Algebra- Find the unknown digit to make each statement true
scZoUnD [109]
1. 7
2. 4
3. 6

Hope this helped! :)
5 0
3 years ago
Other questions:
  • Which of the following expressions does not mean the same as the other three?
    11·2 answers
  • A dripping faucet loses about 2.5×10^−4 litres of water each minute. There are approximately 3×10^5 minutes in a month.
    6·2 answers
  • HELP PLZ ASAP I BEG U
    15·1 answer
  • Use functions to model and solve the following problem. A salesperson earns $300 per week plus 5% commission of sales. How much
    8·2 answers
  • Given the expression 3x^(2)y + 4xy + 1 – 5x^(4)y – 6y, do the following as instructed below: a. Write the polynomial in descendi
    8·1 answer
  • A scale drawing of an apartment shows the living room length as 5.7 inches. The scale on the drawing is 1 inch = 3 feet. What is
    10·1 answer
  • Please help???
    10·1 answer
  • here are the first five terms of a quadratic sequence (1 8, 21, 40, 65). the nth term of this sequence can be written in the for
    9·1 answer
  • What is the LCM of 5xy and 10y² ? ​
    14·2 answers
  • Define volume capacity
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!