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2 years ago

Using the algebraic expression for 4n+6 what is the greatest whole number value of n that will give you a result less than 100

Mathematics

1 answer:

Alex777 [14]2 years ago

8 0

Answer:

Step-by-step explanation:

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Five cupcakes and two cookies cost $19.75. Two cupcakes and four cookies cost $ 17.50.

alina1380 [7]

Answer:

Step-by-step explanation:

Let x and y represent the cost of a cupcake and cookie respectively.

Given that;

Five cupcakes and two cookies cost $19.75.

$5x+2y=19.75 ---------- 1$

Two cupcakes and four cookies cost $17.50.

$2x+4y=17.50 --------------2$

Let's solve the simultaneous equation by elimination;

Multiply equation 1 by 2;

$10x+4y=39.50-------3\\$

Subtract equation 2 from equation 3;

$10x-2x+4y-4y=39.50-8x=22$

$8x=22$

divide both sides by 8

$\frac{8x}{8} =\frac{22}{8} \\x=2.75$

Since we have the value of x, let substitute into equation 1 to get y;

$5x+2y=19.75\\5(2.75)+2y=19.75\\13.75+2y=19.75\\2y=19.75-13.75\\2y=6\\y=\frac{6}{2} \\y=3.00$

therefore , the cost of cupcakes and cookies are;

$cupcakes= 2.75\\cookies= 3.00$

PLEASE MARK ME AS BRAINLIEST

6 0

2 years ago

Please help with part b

timofeeve [1]

Answer:

161391

Step-by-step explanation:

138000 x 16.95/100 = 23391

138000 + 23391 = 161391

5 0

3 years ago

HELP GIVING BRAINLIEST!

KengaRu [80]

Answer:

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

I don’t know what to do please help

Marrrta [24]

Answer:

cos(A)=√21/5

Step-by-step explanation:

Use the definition of each function as well as the Pythagorean Theorem.

Hope it helps :>

4 0

2 years ago

(x+3)(x−1)<br> Cual seria su resultado

sineoko [7]

Answer:

x² -1x + 3x -3

= x² +2x -3

hope it helps

7 0

3 years ago