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vitfil [10]
3 years ago
13

5 + 4a = 45 what does a equal

Mathematics
2 answers:
MakcuM [25]3 years ago
7 0

Answer:

a = 10

Hope this helps :)

Levart [38]3 years ago
6 0

Answer:

a=10

Step-by-step explanation:

5+4a=45

take 5 from each side

4a=40

divide both sides by 4

a=10

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What is the y-intercept of the line whose equation is y =1/2 x - 3?<br><br> 3<br> 1/2<br> -3
MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

y = mx +b

Here , m is the slope and b is the y-intercept

y = (1/2)x - 3

y-intercept = -3

5 0
2 years ago
4+ (-3) - 2*(-6)<br> What is the answer to
konstantin123 [22]

Answer:

13

Step-by-step explanation:

4+(-3)-2*(-6)

4-3-2*-6

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4 0
3 years ago
Read 2 more answers
Perform the following operations and write the answers in radical form. Part A:√7+√3+√98−√18 Part B:3√5−3√11+2√121−3√90
Sveta_85 [38]

Answer:

  1. \sqrt{7}+\sqrt{3}+4\sqrt{2}
  2. 3\sqrt{5}-3\sqrt{11}+22-9\sqrt{10}

Step-by-step explanation:

Part A ;

\sqrt{7} +\sqrt{3} +\sqrt{98} -\sqrt{18} \\\\\sqrt{98}=7\sqrt{2}\\\sqrt{18}=3\sqrt{2}\\\\=\sqrt{7}+\sqrt{3}+7\sqrt{2}-3\sqrt{2}\\\\\mathrm{Add\:similar\:elements:}\:7\sqrt{2}-3\sqrt{2}=4\sqrt{2}\\\\=\sqrt{7}+\sqrt{3}+4\sqrt{2}

Part B ;

3\sqrt{5}  - 3\sqrt{11} + 2\sqrt{121} -3\sqrt{90} \\\\2\sqrt{121}=22\\3\sqrt{90}=9\sqrt{10}\\\\=3\sqrt{5}-3\sqrt{11}+22-9\sqrt{10}

8 0
3 years ago
??????????????????????????
ser-zykov [4K]

Answer:

Step-by-step explanation:

so they used  a total of  560  units

we are next told that if the units of usage are 360 or less use the 1st formula, but there is morn than 360 units in the given amount so use the 2nd formula

0.1(x-360+54)

0.1(560-360) + 54 = monthly bill

20+54 = monthly bill

74 = monthly bill

answer D looks good

3 0
3 years ago
Sam and Avery are making small and large birdhouses for an upcoming craft show. They will sell the small birdhouses for $10 and
kupik [55]

Answer:

<h2>They should make 8 small ones and 12 large ones.</h2><h2>$260 they will make in total.</h2>

Step-by-step explanation:

They want to make as much money as possible.

Small bird house gives them $10 and large birdhouse give them $15.

Avery has time to decorate 12 birdhouse of either size.

Hence, to maximize the earning, Avery should build 12 large ones.

Sam can make any of the combination below in 24 hours.

4 Large and 1 small bird house, which will make 4 \times 15 + 10 = 70

3 Large and 3 small bird house, which will make 3 \times15 + 3 \times10 = 75

2 Large and 4 small bird house, it will gain 2 \times15 + 4 \times10 = 70

1 Large and 6 small bird house, it will make 1 \times15 + 6 \times10 = 75

8 small bird house, which will gain 8\times10 = 80

The profit will be maximize if Sam build 8 small bird houses.

Thus, they will make 80 + 12\times15 = 260.

5 0
3 years ago
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