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vodka [1.7K]
3 years ago
9

Donnovan earned 99 points on his science project. If his grade was a 90%, how many points were possible?

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
4 0

Answer:

Total points were 110.

Step-by-step explanation:

90/100*x=99

9/10*x=99

=x=99*10/9

=x=11*10

=110

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A coin-operated machine sells plastic rings. It contains 6 yellow rings, 11 blue rings, 15 green rings, and 3 black rings. Suzy
aleksandrvk [35]
1) you have to add all the rings together to find the denominator

6 + 11 + 15 + +3 = 35

2) the numerator is the amount of rings of the certain color you are trying to find the probability of

15

3) find the theoretical probability! 15/35

4) simplify

15/35 (divide both by 5) = 3/7
hope it helped :)


8 0
4 years ago
Find the value of 105 squred using bionomial expansion using (a+b) squred=a squred+2ab + b squred
skad [1K]

Answer:

<h2>11025</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about: </h3>
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<h3>let's solve:</h3>
  1. \sf rewrite \: 105 \: as \: 100 + 5 :  \\  \sf (100 + 5 {)}^{2}
  2. \sf use \: (a + b {)}^{2}  =  {a}^{2}  + 2ab +  {b}^{2} \:  to \: simplify :  \\  \sf  {100}^{2}  + 2.100.5 +  {5}^{2}
  3. \sf simplify \: squres :  \\  \sf 10000 + 2.100.5 + 25
  4. \sf simplify \: multipication :  \\  \sf10000 + 1000 + 25
  5. \sf simplify \: addition :  \\  \sf \: 11025
8 0
3 years ago
What is the vertex of the function y=x²+4
djverab [1.8K]

Answer: y=x²+4


Step-by-step explanation:

y=x²+4


Xmin:-10   Xmax: 10   Ymin:-10    Ymax: 10


7 0
4 years ago
This month the Middle School Media newspaper has 25 pages. Twenty-five schools order the paper for each of their students. Each
Georgia [21]

Answer:

The total number of pages in all the newspaper is 390,625 pages

Step-by-step explanation:

The number of pages in the newspaper = 25 pages

The number of schools ordering the newspaper = 25 schools

The number of class rooms in each school = 25 classrooms

The number of students in each classroom = 25 students

Therefore;

The total number of pages in all the newspaper = 25 pages per paper × 25 schools × 25 classroom per school × 25 students per classroom

The total number of pages in all the newspaper = 25 × 25 × 25 × 25 = 25⁴

The total number of pages in all the newspaper = 25⁴ = 390,625 pages

8 0
3 years ago
johhny borrowed $15 per month from his mom to pay for his school supplies at the end of the course he owed his mom $135 how many
dusya [7]
9 months,
135 \ \div 15 = 9
6 0
3 years ago
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