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# Solve systems substitution

alg.37
by

## Enrique Baloyra

on 17 January 2018

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#### Transcript of Solve systems substitution

ESSENTIAL QUESTION
Solve systems of equations using substitution.
Spiral Review 8
hw 37
EXIT SLIP
Name
Date
Period
Assignment

How do I solve systems of equations?
ESSENTIAL QUESTION

5. Set L = {3, 4, 5, 6, 7, 8}
Set M = {4, 6, 8}
Set N = {3, 6}

Find (L M) N.

A.
{4, 6, 8}
B.
{3, 4, 6, 8}
C.
{3, 6}
D.
{3, 4, 5, 6, 7, 8}

6. Solve the formula below for g.

E = kgh

Which equation is solved for g?

A. g = Ehk B. g =

C. g = D. g =
2
7. Solve the equation below for n.

d = (f - 2)n

A. n = dn + 2 C. n =

B. n = D. n =
9. The Venn diagram below shows the length of books three students read.

Theo
190
320
215
Sendy 220 235

280 225
Daana

What is the longest book Sendy and Daana have in common?
8. Solve for w.

n w
6 12

A. w = 72n B. w =

C. w = D. w = 2n
=
_ __
Ek
h
___
2
Eh
k
___
2
E
kh
___
2
f - 2
d
___
d
f - 2
___
d + 2
f
___
2
n
n
2
__
_
2
180
A. 320
B. 220
C. 180
D. 235
10. Katina asked 85 friends whether they
play chess or checkers. 22 like chess only. 17 like both and 10 like neither. How many like checkers?
friends

checkers chess A. 53
B. 36
C. 43
D. 46
1. Precious asked her friends what kind of house they like. If 85 like modern, ranch, or both, how many like only modern?
23
12 17
9
? 19
6
2. Marquis is cataloging his 80 comic books.
He finds 30 are only super hero.
22 are both super hero and adventure.
15 are neither. How many are adventure?

comics

hero
3. Which equation is equivalent to
N = (15 + 1.7x) - 9?

A. N = 15 + 1.7(x - 9)
B. N = (15 + 1.7)x - 9
C. N = (15 + 1.7) - 0.5x
D. N = 15 + (1.7x - 9)
Ranch

Modern Craftsman
4. Vanessa wants to figure out how much she earns an hour. She charges \$75 plus 20% of materials. The equation below shows if she works 15 hours for a client.

15h = 0.2m + 75

Which equation can be used if materials cost \$250?

A. h = 50 + 75

B. h = + 75

C. h = + 5

D. h = + 50
50
15
50
15
75
15
__

__

__
Solve for x.

A total of 380
OBJECTIVE
Standard
Date
Class
Notes
Essential Question
All students will advance at least one level.
All students will advance at least one level.
I, ____________, will do my best to complete my activities and follow these rules:
1. I will stay in my seat and keep my hands, feet and comments to myself.
2. I will keep my voice down.
3. I will always stay on task and work to learn.
4. I will not interrupt the teacher.
5. I will not bring any negativity into the classroom.

Which city experienced the most extreme temperature change throughout this 24-hour period? Why? Describe the distributions.
MAFS.912.A-CED.1.3
algebra i wb
pp 522-23

What percent of the females did not play a sport?
What percent of the students do not play any sport?

What percent of the males play exactly two sports?
What percent of the students who play no sports are male?

Describe the distribution of the data below. Choose an appropriate display to support your findings.

240, 220, 180, 190, 240, 190, 220, 200, 190

Solve for x.

y = x + 4
and
Determine whether the map represents a function.
Substitution Property
Solve for n. Solve for x.

Q = 3n d x + x =
2
2 1 11
3 4 2
_ _ __
Solve by using substitution.

y = -2x - 3
and

If
a = b
AND
a = c
THEN
b = c.

y = x + 4
3
2
_
Solve for r. Solve for b.

3pr - q = w D =
Simplify each radical expression. Determine whether rational or irrational.

8 50 + 3 50 32
Solve each equation for n.

n - 2 n - 5 n - 7 n - 11
12 9 6 8
ab
c
=
=
8
2
12
3
y = - x - 4
5
2
3
2
Solve for x.

y = -x + 24
2x + 3y = 70
Solve for x.

y = x +
and

y = x +
1
3

5y = -2x + 34
and
2y = -3x + 29

y = x - 2 and y = - x + 4
5
3
1
3
1
2
3
2
4
3
When f(x) = g(x), the solution is x.

What is the solution of f(x) = g(x)?

f(x)
= 3x - 1
g(x)
= 2x + 4