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3 years ago

Hello can someone help me pls

Mathematics

1 answer:

beks73 [17]3 years ago

4 0

Hello. I do not know this answer on the spot. But there is an app called mymath and you can download it on any apple or android device that will give you the answer to any of the variables in the equation. Hope it helps

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nikklg [1K]

Answer:

3 x 21

20 x 4 tenths

21 x thirteenth

please mark me as brainlist please

3 0

2 years ago

Sam scored 80% on Part A of a math test and 92% on part B of the math test. His total mark on the test was 63. The total possibl

Nataly_w [17]

Answer:

0.80A + 0.92B = 63 .....1

A + B = 75 ......2

Step-by-step explanation:

Let A and B represent the total possible score in part A and B respectively;

Analysing each sentence of the question;

Sam scored 80% on Part A of a math test and 92% on part B of the math test. His total mark on the test was 63

80% of A + 92% of B = 63

0.80A + 0.92B = 63 ......1

The total possible marks for the test was 75;

A + B = 75 .....2

So, equation 1 and 2 provides a set of simultaneous equations that can be used to represent and solve the situation.

Solving the simultaneous equations, we will arrive at;

Part A = 50

Part B = 25

6 0

3 years ago

Y=ax-b for the variable x

dsp73

Answer:

Step-by-step explanation:

3 0

3 years ago

Find the roots of the equation below. 7x^2 + 1 = 0

atroni [7]

I have no clue how to solve this myself but i would recommend using photomath for tricky equations because it gives you a step by step tutorial for the problem

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3 years ago

Class Size

TEA [102]

I would go with C because if you do A then its all new students and thats one view D is the same. C seems like the best choice.

6 0

3 years ago