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aivan3 [116]
3 years ago
16

Mr. Lopez wrote the equation 32g+8g-10g=150 on the board. Four students explained how to solve for g. Alyssa: “I added 32 and 8

to get 40, subtracted 10 to get 30, and then subtracted 30 from 150 to find the value of g, which is 120.” Rahul: “I added 32, 8, and 10 to get 50, and then I subtracted 150 to find the value of g, which is –100.” Toni: “I subtracted 18 from 32 to get 14, which I then divided into 150 to find the value of g, which is ” Wilhem: “I added 32 and 8 to get 40, subtracted 10 to get 30, and then divided both sides by 30 to find the value of g, which is 5.” Which student’s work is correct?
Mathematics
2 answers:
Vaselesa [24]3 years ago
7 0

Answer:

Wilhem

Step-by-step explanation:

The given equation is

32g+8g-10g=150

Step 1 : Add 32g and 8g.

(32g+8g)-10g=150

(32+8)g-10g=150

40g-10g=150

Step 2: Subtract 10 from 40.

(40-10)g=150

30g=150

Step 3: Divide both sides by 30, find the value of g.

\frac{30g}{30}=\frac{150}{30}

g=5

The value of g is 5.

Therefore, Wilhem is correct.

natta225 [31]3 years ago
7 0

Answer:

whilem

Step-by-step explanation:

use your math skillz dumb dumb. Read the question and don't be imtimadated by it.

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A news agency publishes results of a recent poll. It reports that candidate A leads candidate B by 10% because 45% of the poll p
natali 33 [55]

We need to use the formula to find Margin of Error but through the sample proportion, that is

E=z*\sqrt{\frac{\hat{p}(1-\hat{p})}{n}}

We will use a 95% confidence interval, that is a z value of 1.96 (Search in a Normal distribution table)

A) For A our \hat{p} (proportion) is equal to 0.45. So applying the formula,

E=1.96*\sqrt{\frac{0.45(1-0.45)}{900}}

E=3.25\%

B) We make the same of point A, but change our proportion to 0.35

E=1.96*\sqrt{\frac{0.35(1-0.35)}{900}}

E=3.116\%

c) We need to calculate the SE through proportion for 0.1, that is

SE = \sqrt{(\frac{\hat{p_1}(1-\hat{p_1})}{n})+(\frac{\hat{p_2}(1-\hat{p_2})}{n})}

Then our Error is given by,

E=z*SE

E=1.96*\sqrt(0.45*\frac{0.55}{900}+0.35\frac{0.65}{900}

E=0.045

7 0
3 years ago
Il perimetro di un rettangolo è 126 cm. La base è i tre quarti dell'altezza. Mi potreste dire come procedere? ​
Oksana_A [137]

Answer:

w = 36 cm

L = 27 cm

Step-by-step explanation:

I am translating and I see that perimeter of rectangle is 126 cm and the base (assuming Length) is (3/4) the height.

P = 2(l+w)

126=2((\frac{3}{4} w)+w)

Divide both sides by 2, so you get

(3/4)w+(4/4)w=(126/2)

(7w/4)=63

Multiply both sides by 4,

7w=252, then divide both side by 7,

w = 36, Width is 36 cm, so Length is (3/4), which is L = 27 cm

6 0
3 years ago
Order the ratios from least to greatest 6:3 13 to 4 19/2 15 to 10 8:2
Alik [6]
6:3 = 6/3 = 2

13 to 4 = 13:4 = 13/4 = 3.25

19/2 = 9.5

15 to 10 = 15:10 = 15/10 = 1.5

8:2 = 8/2 = 4

From the least to the greatest:

15 to 10 ,  6:3,  13 to 4,  19/2

I hope this explains it.
8 0
3 years ago
If f(x)=3x-2 and g(x)=2x+1,find (f-g)(x) <br><br> A. x - 3<br> B. 5x - 3<br> C. 3 - x<br> D. 5x - 1
Nady [450]

Answer:

A

Step-by-step explanation:

(f - g)(x)

= f(x) - g(x)

= 3x - 2 - (2x + 1)

= 3x - 2 - 2x - 1 ← collect like terms

= x - 3 → A

6 0
3 years ago
Read 2 more answers
Please answer ASAP! <br> All help is deeply appreciated!
Darina [25.2K]

Answer:

I am going to have to go with B. (How many text messages do you send each day?) This will get you the data needed because it is specific. D would also work but I went with C because D is less informative and less specific about how often people use their phones. Hope that this helped! Please tell me if you have any more questions! Have a great day!

4 0
3 years ago
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