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amid [387]
3 years ago
13

Explain how to add 678 + 303 using mental math

Mathematics
1 answer:
zloy xaker [14]3 years ago
4 0

Answer:

You add it in your mind.

Step-by-step explanation:


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Please can I get some type of help on questions 27 and 29 PLEASE ANYONE
nasty-shy [4]

Answer:

Number 27:Population density refers to the number of people who live in a defined land area (usually square miles or square kilometers). So, if two million people live in ten square miles, the population density is two hundred thousand people per square mile.

Number 29:Your heart beats about 100,000 times in one day. And about 35 million times in a year.And 128 beats in one minute

Step-by-step explanation:

8 0
3 years ago
Suppose the function D(p)=1500-25p represents the demand for hot dogs, whose price is p, at a baseball game. Find the domain of
TiliK225 [7]

The function is given by

\\ \tt\hookrightarrow D(p)=1500-25p

  • Price must be greater than 0

\\ \tt\hookrightarrow 1500-25p\geqslant 0

\\ \tt\hookrightarrow 1500\geqslant 25p

\\ \tt\hookrightarrow p\leqslant 60

Now

\\ \tt\hookrightarrow D_f\in (-\infty,60]

3 0
3 years ago
1. A roller coaster is based all on: *
VLD [36.1K]
D, A, B, A, D, B, A, C
6 0
3 years ago
Use the distributive property to exspand the algebraic expression 9(a - 3b)
Gwar [14]

9a-27b you must multiply 9 to everything



6 0
3 years ago
Read 2 more answers
The function f(x) is graphed on the coordinate plane. What is f(−1) ?
Advocard [28]
The graph displays y = -2x + 1
So, f(-1) would be:
f(-1) = -2(-1) + 1
= 2 + 1
f(-1) = 3
8 0
3 years ago
Read 2 more answers
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