3 years ago

Need help with this

Mathematics

1 answer:

Mumz [18]3 years ago

8 0

Answer:

a) W=(U)(O)

b) $29.25

Step-by-step explanation:

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otez555 [7]

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3 years ago

Select all of the followin expressions that are equal to 2.5

Elena L [17]

the answer is Aand B

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3 years ago

Read 2 more answers

H<br> e<br> l<br> p<br> ?<br> p<br> l<br> e<br> a<br> s<br> e

Bingel [31]

To clear the fractions we multiply both sides by the least common multiple of all the denominators.

1/2 x + 2/3 = 4

Denominators 2 and 3, so multiply both sides by [Answer]: 6

3/4 x + 1 = 5/6

Denoms 4 and 6, LCM=12 Answer: 12

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LCM(7,3,21)=21 Answer: 21

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LCM(5,2) Answer: 10

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4 years ago

What is. $93.49 divided by 59

Sergeu [11.5K]

93.49 / 59 = <span>1.58 rounded to the nearest hundreth.

Hope this helps!</span>

4 0

3 years ago

In an arithmetic sequence, the sum of the 3rd and 8th term is 1. Given that the sum of the first seven terms is 35, determine th

Ann [662]

Answer:

<h3> first term: <u>a₁ = 14</u></h3><h3> the common difference: <u>d = -3</u></h3>

Step-by-step explanation:

The sum of the 3rd and 8th term is:

$a_3+a_8=1\\\\a_1+2d+a_1+7d=1\\\\\underline{2a_1+9d=1}$

The sum of the first seven terms is 35:

$S_7=35\\\\\dfrac{a_1+a_7}2\cdot7=35\\{}\qquad\quad^{\div7\qquad\div7}\\ \dfrac{a_1+a_1+d}2=5\\{}\qquad\qquad^{\cdot2\qquad\cdot2}\\2a_1+6d=10\\{}\qquad\ ^{\div2\qquad\div2}\\a_1+3d=5\\{}\quad\ ^{-3d\quad\ -3d}\\a_1=5-3d$

$2a_1+9d=1\\\\2(5-3d)+9d=1\\\\10-6d+9d=1\\{}\qquad\qquad^{-10\quad-10}\\{}\qquad3d=-9\\{}\qquad^{\div3\qquad\div3}\\{}\qquad d=-3\\\\\\a_1=5-3(-3)=5+9=14$

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3 years ago