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4 years ago

If y represents a number then write an expression for negatice two times the sum of y and 7

Mathematics

1 answer:

stiks02 [169]4 years ago

5 0

Answer:

-2 times (y + 7)

Step-by-step explanation:

first, -2 times the sum of y and 7.

(y + 7)

altogether = -2 times (y + 7)

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Help me with this...

marin [14]

i. 171

ii. 162

iii. 297

Solution,

n(U)= 630

n(I)= 333

n(T)= 168

i. Let n(I intersection T ) be X

$333 - x + x + 468 - x = 630 \\ or \: 333 + 468 - x = 630 \\ or \: 801 - x = 630 \\ or \: - x = 630 - 801 \\ or \: - x = - 171 \\ x = 171$

<h3>ii.n(only I)= n(I) - n(I intersection T)</h3><h3> = 333 - 171</h3><h3> = 162</h3>

<h3>iii. n ( only T)= n( T) - n( I intersection T)</h3><h3> = 468 - 171</h3><h3> = 297</h3>

<h3>Venn- diagram is shown in the attached picture.</h3>

Hope this helps...

Good luck on your assignment...

4 0

4 years ago

two boxes of apples contain a total of 24 apples. if you halve the number of apples in the first box and add 4 apples to the sec

Llana [10]

There was 16 apples in the first box and 8 apples in the second box initially.

8 0

3 years ago

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Find the dependent and independent variable in r= 5s+ 3.

Ksivusya [100]

Answer:

Dependent variable: s andIndependent variable: r

Step-by-step explanation:

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3 years ago

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Can any one please help me in this the teacher did not explain this it have to be in the lowest term also no decimal answer than

Zinaida [17]

Answer:

Step-by-step explanation:

$A . -5+3x =-41\\3x=-41+5\\3x = -36\\\frac{3x}{3} =\frac{-36}{3} \\x = -12\\\\\\\\\\B. 7x-4=-2x+11\\Collect-like-terms\\7x+2x=11+4\\9x=15\\\frac{9x}{9} =\frac{15}{9} \\\\x = \frac{5}{3} \\\\C. \frac{-4x}{5} =8\\Cross-multiply\\-4x=40\\\frac{-4x}{4} =\frac{40}{-4} \\x = -10\\\\D. \frac{x}{3} -\frac{1}{2} =\frac{1}{4} \\\frac{x}{3} =1/4+1/2\\\frac{x}{3} = \frac{3}{4} \\Cross-multiply\\4x =9\\4x/4 =9/4\\x = 9/4\\$

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3 years ago

Fuaad solved an absolute value inequality and expressed the solution as -12

Zarrin [17]

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4 years ago