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3 years ago

6

Can someone please give me the answers I will mark you brilliant as soon as it pops up

2 answers:

Rom4ik [11]3 years ago

6 0

I believe 80 sorry if wrong

Vesna [10]3 years ago

5 0

Answer:

1.) $=50x+30y$

2.? The first one

Step-by-step explanation:

1.) $\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac$ , $a=10,\:b=5x,\:c=3y$

$=10\cdot \:5x+10\cdot \:3y$ $=50x+30y$

2.) The first one

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Keith_Richards [23]

Answer:

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Density is 10.5 grams per centimetre cube

Step-by-step explanation:

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3 years ago

P is the largest prime number between 50 and 100.

Bogdan [553]

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Step-by-step explanation:

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8 0

3 years ago

Please help i always give brainliets and thanks

pav-90 [236]

Answer:

(3)

Step-by-step explanation:

(1), (2) and (4)

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3 years ago

100 POINTS HELP ASAP Linear Combination

notka56 [123]

Answer:

1) $x=\dfrac12$

2) $n = -3 \ \ \textsf{and} \ \ m = -4$

3) see below

4) A: 0 = 1

Step-by-step explanation:

<u>Question 1</u>

$15-0.5(4x-2)+4x=17$

$\implies 15-2x+1+4x=17$

$\implies 2x+16=17$

$\implies 2x=1$

$\implies x=\dfrac12$

<u>Question 2</u>

$\textsf{rearrange} \ n=m+1 :$

$\implies -m=-n+1$

$\textsf{add equations} \ -m=-n+1 \ \textsf{and} \ m=2n+2:\\$

$\implies0=n+3$

$\implies n=-3$

$\textsf{substitute} \ \ n=-3 \ \ \textsf{into} \ \ m=n-1:$

$\implies m=-3-1$

$\implies m=-4$

<u>Question 3</u>

subtract the second equation from the first

divide both sides by -4

substitute found value for y into first equation

solve for x

<u>Question 4</u>

$3j=k$

$k=3j+1$

$\textsf{rearrange} \ 3j=k :$

$\implies -k=-3j$

$\textsf{add equations}\ -k=-3j \ \ \textsf{and}\ \ k=3j+1:$

$\implies 0=1$

Solution = A

6 0

2 years ago

I NEED HELP!!!!!!

omeli [17]

The answer is 3. because you go -4 on the y axis and go up by 3

3 0

3 years ago