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
andrey2020 [161]
3 years ago
14

Tia's teacher asked her to find the product of 8 and 207 in her head. Which of the following describes the best way for Tia to m

entally calculate the answer?
Multiply 8 by 200 and subtract 8 times 7.
Multiply 8 by 200 and add 8 times 7.
Multiply 8 by 210 and subtract 8 times 7.
Mathematics
1 answer:
Mkey [24]3 years ago
3 0

Answer:

the answer is number 2

Step-by-step explanation:

207                    200

<u>x   8</u>                    <u>x   8</u>                                                                                                                                                    

1656                   1600

                        <u>  + 56</u>

                           1656

                         

You might be interested in
Alex is making puppets for a show. He bought all the string needed for $125. It costs $18 for the remaining materials to make ea
Alexus [3.1K]

Alex bought all the string needed for $125.

It costs $18 for the remaining materials to make each puppet.

So if we closely observe then we see that here $125 is the fixed cost because its not going to change with number of puppets.

And the variable cost is $18.

In this case we can model a Total cost function C(x) for for x number of puppets as below

C(x)=125+18x\\ \\ \text{Here x is the number of puppets}\\ \\ \text{Since in our case the number of puppets is 50 so replace x by 50 we get }\\ \\ C(50)=125+18*50\\ \\ C(50)=125+900\\ \\ C(50)=1025  \ dollar.

The total cost to make 50 puppets=$1025

3 0
3 years ago
Read 2 more answers
Which of the following equations represent linear functions?
strojnjashka [21]

Answer:

its y=-5x

Step-by-step explanation:

Why?

linear functions have only the slope, they dont include the y-intercept

7 0
3 years ago
What is the surface area to volume ratio of a cube whose sides are 3 cm long
zavuch27 [327]
3ml is the correct answer becauss 1cm^3 is 1ml
7 0
3 years ago
A projectile is fired straight up from ground level with an initial velocity of 112 ft/s. Its height, h, above the ground after
PtichkaEL [24]

Answer:

Step-by-step explanation:

We can do this the easy way and just set up an inequality and let the factoring do the work for us. The inequality will look like this:

-16t^2+112t>192 We will move the constant over and get

-16t^2+112t-192>0 and when you factor this you get that

3 < t < 4

Between 3 and 4 seconds is where the projectile reaches a height higher than 192 feet. With a little more work and some calculus you can find the max height to be 196 feet.

5 0
3 years ago
jane’s mobile phone plan charges $0.05 per minute at daytime rates before 8 p.m. and $0.03 per minute at nighttime rates after 8
LUCKY_DIMON [66]
The conference call lasts 90 minutes. Minutes at daytime rate is 7pm to 8pm, 60 minutes, and at nighttime rate, 30 minutes.
60 mins @ 5c/min=$3. 30 mins @ 3c/min=$0.90. Total before conference charge: $3.90. Total cost=3.90×1.5=$5.85.
7 0
3 years ago
Read 2 more answers
Other questions:
  • "how many four​-digit odd numbers are possible if the leftmost digit cannot be​ zero"
    11·1 answer
  • Y’all know the answer to this question ?
    10·1 answer
  • I NEED HELP PLEASE, THANKS! :)
    15·1 answer
  • Identify each as an example of exponential growth or decay. What is the y-intercept? What is the end behavior? 1)y=10(0.45)^x 2)
    6·1 answer
  • (71 + 29) x 26 in words
    6·1 answer
  • 1) Which of the following is NOT a property of reflection?
    14·1 answer
  • Determine the domain with symbols, will give brainlist
    13·2 answers
  • Find the number that makes the ratio equivalent to 9:4.<br> 72:
    8·1 answer
  • A right angled triangle has sides 12m and 5 m.what is the length of the hypotenuses of this triangle?
    13·2 answers
  • =. What does the expression (x+3)(9) represent? Why?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!