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Brut [27]
2 years ago
7

Victoria wants to earn an average grade of at least 80 on her four Algebra tests. So far she has taken 3 tests and earned grades

of 54, 89 and 100. _____ is the minimum score that she needs to earn on the fourth test to get an overall average score of 80.
Mathematics
1 answer:
Romashka-Z-Leto [24]2 years ago
7 0
73 is the minuim score.
You might be interested in
The sum of four numbers is 1,320. The sum of three of the numbers is 40% more than the other number, x. What is the value of x ?
ziro4ka [17]

Answer:

550

Step-by-step explanation:

We aren't given that they are consecutive so lets just pretend the numbers are x, y, z , and r.

We are given x+y+z+r=1320

We are also given that y+z+r=.4x+x

Simplifying my second equation gives us y+z+r=1.4x. I'm going to plug this into first equation giving me

x+1.4x=1320

2.4x=1320

So x=1320/2.4=550

6 0
3 years ago
Read 2 more answers
A bacteria culture starts with 100 bacteria and doubles in size every half hour. (a) how many bacteria are there after 4 hours?
Savatey [412]
19200 all you have to do to figure this out is multiply 100 times 8 since the is 8 halfs in 4 hours.
<span>
</span>
5 0
3 years ago
Help I will be marking brainliest!!!
expeople1 [14]

Answer:

A. 51°

Step-by-step explanation:

By the theorem of intersecting secants.

m\angle B=\frac{1}{2} (m\widehat{LW} - m\widehat{MU})

44.5\degree =\frac{1}{2} (140\degree - m\widehat{MU})

2\times 44.5\degree = 140\degree - m\widehat{MU}

89\degree = 140\degree - m\widehat{MU}

m\widehat{MU} = 140\degree -89\degree

m\widehat{MU} = 51\degree

8 0
2 years ago
PLEASE HELP ME!!Write the quotient as a mixed number.<br> 46 divided by 9 = 5 R1
Zigmanuir [339]

Answer:

5\frac{1}{9}

Step-by-step explanation:

When dividing 46 by 9 quotient is 5 and remainder is 46 - 45 = 1

5\frac{1}{9}

5 0
3 years ago
School rules permit no fewer than 2 teachers per 25 students. There are at least 245 students enrolled in the school. If x repre
NISA [10]
First, let's write down this inequality:
<span>There are at least 245 students enrolled in the school.

 y≥245

This inequality says what the sentence says!

now, the number of teachers must be:
x≥2*(y/25)
 (two times the number of groups of students of 25!)

so those two inequalities, taken together will be the answer!
</span>
6 0
3 years ago
Read 2 more answers
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