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Komok [63]
2 years ago
10

-6 by 7 + -3 by 8 solution i want please​

Mathematics
1 answer:
gizmo_the_mogwai [7]2 years ago
3 0

- 6 \times 7 +  - 3 \times 8

<u>Remember the rule BOMDAS</u><u>:</u>

<u>Br</u><u>ackets</u><u> </u><u>of</u>

<u>Multiplication</u>

<u>Division</u>

<u>Addition</u>

<u>Subtraction</u>

<em>Meaning</em><em> </em><em>we</em><em> </em><em>do</em><em> </em><em>the</em><em> </em><em>Multiplication</em><em> </em><em>First</em><em>!</em>

<em>(- 6 \times 7) + ( - 3 \times 8)</em>

<em><u>Work</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>first</u></em><em><u> </u></em><em><u>equation</u></em>

<em><u>- 35 +  - 24</u></em>

<em><u>+</u></em><em><u>-</u></em><em><u> </u></em><em><u>(</u></em><em><u>you</u></em><em><u> </u></em><em><u>subtract</u></em><em><u>)</u></em>

<em><u>- 35 - 24 =  - 59</u></em>

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Answer:

1/10

Step-by-step explanation:

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a list that contains the name the five anthropology students three sociology students in for psychology students. if one name is
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Probability

There are:

5 anthropology students

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The probability that one randomly selected student is for anthropology is:

p=\frac{5}{12}

Note we have divided the number of favorable cases by the total cases

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9 months ago
A triangle has sides with lengths of 10 cm 6 cm and 8cm is it a right triangle
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Answer:

Yes!

Step-by-step explanation:

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6 0
3 years ago
Larry Mitchell invested part of gis 35,000 advance at 3% annual simple interest and the rest at 2% annual simple interest. If hi
Rom4ik [11]

Answer:

He invested $20000 for 3% rate and $15000 for 2% rate.

Step-by-step explanation:.

Let the 3% rate be for Account A and the 2% rate for Account B.

From the question, we know that the Principal from both accounts must add up to $35000

P_A + P_B = 35000 ________________________ (1)

We also know that the interest from both accounts add up to $900

I_A + I_B = $900________________________(2)

The Interest from Account A (R = 3%, T = 1) is:

I_A = \frac{P_A *R*T}{100}

This implies that:

I_A = \frac{P_A *3*1}{100}\\\\\\I_A = \frac{3P_A}{100} \\\\\\100*I_A = 3P_A\\\\\\100I_A - 3P_A = 0________________________(3)

The Interest from Account B (R = 2%, T = 1) is:

I_B = \frac{P_B *R*T}{100}

This implies that:

I_B = \frac{P_B *2*1}{100}\\\\\\I_B = \frac{2P_B}{100} \\\\\\100*I_B = 2P_B\\\\\\100I_B - 2P_B = 0_____________________________(4)

From (1),

P_B = 35000 - P_A

Putting this in (4)

100I_B - 2*(35000 - P_A) = 0\\\\100I_B -70000 + 2P_A = 0\\\\100I_B +2P_A = 70000________________(5)

From (2):

I_A = 900 - I_B

Putting this in (3):

100(900 - I_B) - 3P_A = 0\\\\90000 - 100I_B - 3P_A = 0\\\\100I_B +3P_A = 90000_______________________(6)

(5) and (6) are simultaneous equations, hence, we can solve them:

100I_B +3P_A = 90000\\\\100I_B + 2P_A = 70000

Subtracting (5) from (6):

3P_A - 2P_A = 90000 - 70000

P_A = $20000

Hence:

P_B = 35000 - 20000\\\\

P_B = $15000

Also:

100I_B + 3P_A = 90000\\\\100I_B + (3 * 20000) = 90000\\\\100I_B + 60000 = 90000\\\\\\100I_B = 90000 - 60000\\\\100I_B = 30000

I_B = 3000/100 = $300

Hence:

I_A = 900 - 300\\\\

I_A = $600

Hence, Larry invested $20000 at 3% annual interest and got $600 interest. He also invested $15000 at 2% annual interest and got $300.

5 0
3 years ago
A ferris wheel has a circumference of 119.32 yds. a) What is the diameter of this ferris wheel? and b) What is the radius of thi
aleksandr82 [10.1K]

Answer:

a) 38

b) 19

Step-by-step explanation:

2πr = 119.32

2(3.14)r = 119.32

6.28r = 119.32

r = 119.32 / 6.28

r = 19

diameter = 2r = 2(19) = 38

3 0
2 years ago
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