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3 years ago

10

The sum of two numbers is 10. The difference between the two numbers is 4. What is the smaller number? OA – 1 OB. 3 OC. 7 OD. 9

OE. 11

1 answer:

11111nata11111 [884]3 years ago

7 0

Answer:

3

Step-by-step explanation:

if you do the math 5+5 is 10 and 3.5 is half of 5 so the answer if you round is 3

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A patient takes vitamin pills. Each day he must have at least 420 IU of vitamin A, 5 mg of vitamin

vagabundo [1.1K]

Answer:

minimum cost is 70 cents when Greg buys 3 pill type 1, and 2 pills type 2.

Step-by-step explanation:

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3 years ago

Read 2 more answers

Find an explicit rule for the nth term of the sequence.The second and fifth terms of a geometric sequence are 18 and 144, respec

vova2212 [387]

Given:

second term = 18

fifth term = 144

The nth term of a geometric sequence is:

$\begin{gathered} a_n\text{ = ar}^{n-1} \\ Where\text{ a is the first term} \\ r\text{ is the common ratio} \end{gathered}$

Hence, we have:

$\begin{gathered} \text{ar}^{2-1}\text{ = 18} \\ ar\text{ = 18} \\ \\ ar^{5-1}=\text{ 144} \\ ar^4\text{ =144} \end{gathered}$

Divide the expression for the fifth term by the expression for the second term:

$\begin{gathered} \frac{ar^4}{ar}\text{ = }\frac{144}{18} \\ r^3\text{ = }\frac{144}{18} \\ r\text{ = 2} \end{gathered}$

Substituting the value of r into any of the expression:

$\begin{gathered} ar\text{ = 18} \\ a\text{ }\times\text{ 2 = 18} \\ Divide\text{ both sides by 2} \\ \frac{2a}{2}\text{ =}\frac{18}{2} \\ a\text{ = 9} \end{gathered}$

Hence, the explicit rule for the sequence is:

$a_n\text{ = 9\lparen2\rparen}^{n-1}$

5 0

1 year ago

Jennifer buys a block of clay for an art project. The block is shaped like a cube with edge lengths of 12 inches.

Gnoma [55]

Answer:

Volume of block Jennifer bought:

V = side^3 = 12 x 12 x 12 = 1728 (in3)

Volume of sphere Jennifer wanted to make:

V = (4/3) x pi x radius^3 = (4/3) x pi x (4/2)^3 = 33.5 (in3)

a, The number of spheres she can make:

N = 1728/33.5 = 51.58 = ~51

b, The area of remaining clay after she made a sphere:

A = 1728 - 33.5 = 1694.5 (in3)

Hope this helps!

:)

7 0

3 years ago

The net price equivalent rate of 3/7/13 is:

mrs_skeptik [129]

I think it’s 0.4285 or 42/85

4 0

3 years ago

Can somebody help with numbers 19-24

Gemiola [76]

19-20 idk but ik the others
21.)0.785
22.)0
23.)-14.5
24.)7.838

5 0

3 years ago