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3 years ago

Can 4x-2y=12x+2y=8 be solved by adding one of the original equations to the other

Mathematics

1 answer:

nydimaria [60]3 years ago

6 0

Answer:

No you can't add problems together, but you can use elimnation

Step-by-step explanation:

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If R is the set of all integers with absolute value less than 10, A is its subset containing all natural numbers less than 10 an

Elza [17]

Answer:

See explanation

Step-by-step explanation:

1. R is the set of all integers with absolute value less than 10, thus

$R=\{a\in \mathbb{Z}\ :\ |a|$

2. A is its subset containing all natural numbers less than 10, thus

$A\subset R\\ \\A=\{b\in \mathbb{N}\ :\ b$

3. B is the set of all integer solutions of inequality 2x+5<9 that are less than 10 by absolute value (and therefore, it is also a subset of R). First, solve the inequality:

$2x+5$

Thus,

$B\subset R\\ \\B=\{c\in \mathbb{Z}\ :\ 2c+5$

See the diagram in attached diagram.

Note that

$A\cup B=R\\ \\A\cap B=\{1\}.$

4 0

3 years ago

The Jones family bought 3 drinks (d) and 3 snacks (s) for $21. The Davis family bought 2 drinks (d) and 3 snacks (s) for $18. Le

mario62 [17]

3d+ 3s = $21 because they bought three drinks and three snacks

7 0

3 years ago

Each salt shaker holds 1 1/4

MrRa [10]

Answer: It will fill 8 salt shakers.

Step-by-step explanation:

7 0

3 years ago

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Given:

Colt1911 [192]

Your question is very confusing but x=8 so just plug in 8 where you see X

3 0

3 years ago

HELP ASAP PLEASE.

ValentinkaMS [17]

Answer:

pls give brainlist

Step-by-step explanation:

a. $\frac{50 blocks (L)}{9 blocks(W)\\}$ 50 x 9 = 450. A=450

b. I can scale the unit rate of the area given above and largen the area of the map. Ex. $\frac{7}{3}$ = $\frac{21}{6}$ <---(scaled by 2)

Then we can enlarge it however we want so,

$\frac{21}{6}$ = $\frac{42}{12}$ <--(scaled by 2 once more)

If the statement above is true then we can scale times 4.

$\frac{7}{3}$ = $\frac{42}{12}\\$ <---(scaled by 4)

A= $\frac{42}{12\\}$

all i can give u at the moment , if u go on M a t h w a y it can help

5 0

2 years ago

Read 2 more answers