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serg [7]
3 years ago
12

Solve the System by Substitution. x=y -3x-y=4

Mathematics
1 answer:
9966 [12]3 years ago
3 0

Answer:

y=-3x-4

Step-by-step explanation:

I would recommend to use p h o t o m a t h ( it didn't let me put that in there together but yeah I would recommend it

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Marina86 [1]
The first option, because if it’s 291 yards and 1/4 BELOW (below: meaning negative because you are under the usual sea level).

-291 (1/4)

Hope this helped!
8 0
3 years ago
I need qestion number d) solution please help me​
natita [175]

Answer:

It is an identity, the proof is in the explanation

Step-by-step explanation:

csc(A)-cot(A)=tan(A/2)

I'm going to start with right hand side

tan(A/2)=(1-cos(a))/(sin(a))                half angle identity

tan(A/2)=1/sin(a)-cos(a)/sin(a)         separate fraction

tan(A/2)=csc(a)-cot(a)                     reciprocal and quotient identities

8 0
3 years ago
Mrs James is a boutique owner who recently started selling Over-The-Knee boots. She buys them from her supplier for $300 per set
Lelechka [254]

Answer: $39.60

Step-by-step explanation:

300/10 for one pair of boots is $30

30/100=x/132

x is the selling price

Cross multiply: 100x=3960

Divide: x=39.60

3 0
3 years ago
Read 2 more answers
Marcus earned $54,000 last year when the Social Security tax was 6.2% of income up to $94,200. His Medicare tax was 1.45%. How m
AysviL [449]

Answer

Social security tax amount = $3348

Medicare tax amount = $743

Step by step explanation

The amount earned by Marcus = $54000

Social security tax = 6.2% = 6.2/100 = 0.062

Social security tax amount = 54000*0.062

Social security tax amount = $3348

Medicare tax = 1.45% = 1.45/100 = 0.0145

Medicare tax amount = 54000*0.0145

Medicare tax amount = $743

Hope this will help you.

6 0
3 years ago
Read 2 more answers
Jack agrees to sell Tyler his pocketknife for 3 baseball cards. Tyler sells his soccer ball for 2 baseball cards. In what way ar
Sphinxa [80]

Answer:

the baseball cards are used as currency in this example

6 0
4 years ago
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