How to solve problem?

1 answer:

4 0

Answer:

5042

Step-by-step explidkanation:

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Olegator [25]

Answer:

$He \: needs \: to \: score \: 90 \: or \: more$

Step-by-step explanation:

$\frac{x + 45 + 65 + 80}{4} \geqslant 70\Leftrightarrow x + 190 \geqslant 280\Leftrightarrow x \geqslant 90$

3 0

3 years ago

aliina [53]

To solve this, set up the equation, 90% of x being .9*x=57. Then, solve for x, x=57/.9= $6 \frac{1}{3}$ =6.333

4 0

3 years ago

Katarina [22]

Answer:

Step-by-step explanation:

3 0

3 years ago

quester [9]

138p as 1/4 is half of 50% so double 79p

4 0

3 years ago

shepuryov [24]

Answer:

addition +

Step-by-step explanation:

You always do what's in parenthesis first.

8 0

2 years ago