All categories

3 years ago

Jake has taken 4 test and his average so far is 79. if he takes 2 more tests and scores a 100 on both what will his average be?

1 answer:

7 0

Total marks for the 4 tests: 79 x 4 = 316
Total marks for the 6 tests: 316 + (100 x 2) = 516
His average marks will then be 516 / 6 = 86
Ans: 86

You might be interested in

Solve for t<br> 5t - 2 = 6t - 7

Dmitry_Shevchenko [17]

Answer:

The answer to the question is 5 (positive 5)

3 0

3 years ago

-10 + square root of 2x+1 = -5

Citrus2011 [14]

Answer:

Step-by-step explanation:

-10+sqrt2x+1 = -5

sqrt2x+1 = -5+10

sqrt2x+1 = 5

2x+1 = sqrt5

2x = sqrt5-1

x = (sqrt5-1)/2

5 0

3 years ago

Evaluate the expression for<br> a = 27, b = 26, c = 27, d = 23:<br> a+b-c-d

artcher [175]

For this case we have the following expression:

$a + b-c-d$

We must evaluate the expression when:

$a = 27\\b = 26\\c = 27\\d = 23$

Substituting the values we have:

$a + b-c-d = 27 + 26-27-23$

Equal signs are added and the same signs are placed.

$a + b-c-d = + 53-50$

Different signs are subtracted and the sign of the major is placed:

$a + b-c-d = 53$

Finally we have to:

$a + b-c-d = 53$

Answer: $a + b-c-d = 53$

5 0

3 years ago

The following statistics represent weekly salaries at the Midtown Construction Company.

Sphinxa [80]

Answer:

Step-by-step explanation:

4 0

3 years ago

I need help solving this problem

Alex787 [66]

Answer:

$(x,f(x)) = (-1,8)$ -- Another point

$a = 8$

Step-by-step explanation:

Given

$f(x) = a|x|$

$(x,f(x)) = (1,8)$

Solving (a): Another point

Substitute 1 for x and 8 for f(x) in $f(x) = a|x|$

$8 = a|1|$

Remove absolute bracket

$8 = a*1$

$8 = a$

$a = 8$

Substitute 8 for a in $f(x) = a|x|$

$f(x) = 8|x|$

Let x = -1

$f(x) = 8|-1|$

Remove absolute bracket

$f(x) = 8*1$

$f(x) = 8$

So, another point is:

$(x,f(x)) = (-1,8)$

Solving (b): The value of a

This has been solved in (a) above

$a = 8$

7 0

3 years ago