1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
xenn [34]
2 years ago
6

At the end of the quarter, sara knows she got a perfect score on 3 out of 7 of her history quizzes. How many total quizzes did s

he take during the quarter if she has 9 perfect scores?
Mathematics
1 answer:
Karolina [17]2 years ago
3 0

Answer:

11

Step-by-step explanation:

You might be interested in
Line AB passes through A(-3, 0) and B(-6, 5). What is the equation of the line that passes through the origin and is parallel to
amid [387]

parallel means "same slope (m)"

m = \frac{y2 - y1}{x2 - x1} = \frac{0 - 5}{-3 - (-6)} = \frac{-5}{-3 + 6} = \frac{-5}{3}

Now, input the point (0, 0) and the slope (\frac{-5}{3}) into the Point-Slope formula:

y - y₁ = m(x - x₁)

y - 0 = \frac{-5}{3}(x - 0)

    y = \frac{-5}{3}x

 3y = -5x    <em>multiplied both sides by 3</em>

 0   = -5x - 3y  <em>subtracted 3y from both sides</em>

Answer: C


7 0
3 years ago
Which weighs more, a pound of cotton or a pound of bricks?
makvit [3.9K]
Is this a trick question? They're both a pound. 
7 0
3 years ago
Completely simplify the expression 4x+10+6x+2x4x+10+6x+2x
oksian1 [2.3K]
<span>Simplifying 4x + 20 = 6x + -10 Reorder the terms: 20 + 4x = 6x + -10 Reorder the terms: 20 + 4x = -10 + 6x Solving 20 + 4x = -10 + 6x Move all terms containing x to the left, all other terms to the right. Add '-6x' to each side of the equation. 20 + 4x + -6x = -10 + 6x + -6x Combine like terms: 4x + -6x = -2x 20 + -2x = -10 + 6x + -6x Combine like terms: 6x + -6x = 0 20 + -2x = -10 + 0 20 + -2x = -10 Add '-20' to each side of the equation. 20 + -20 + -2x = -10 + -20 Combine like terms: 20 + -20 = 0 0 + -2x = -10 + -20 -2x = -10 + -20 Combine like terms: -10 + -20 = -30 -2x = -30 Divide each side by '-2'. x = 15 Simplifying x = 15</span>
5 0
3 years ago
Read 2 more answers
Multiple choice questions will mark brainlist answer asap
Vesna [10]
11, -8, and 7 are the answers...

Please mark as brainliest... I really need it...
3 0
3 years ago
Numerical expression 5+9
ycow [4]
5+9=14 in numerical expression
4 0
2 years ago
Other questions:
  • Please help me with this
    10·1 answer
  • What is the value of n
    8·2 answers
  • What is the y-intercept if the line?<br> A. 0<br> B. -2<br> C. 1<br> D. 1/2
    7·2 answers
  • A store is having a sale on jelly beans and trail mix. For 3 pounds of jelly beans and 2 pounds of trail mix, the total cost is
    15·1 answer
  • Write the number 31 in tens and ones. 2 tens
    6·2 answers
  • Photo question; find the length
    12·2 answers
  • Solve the system by substitution. Check your solution.
    6·1 answer
  • A bag of trail mix weights 2 ib. By weights, 18% of the trail mix is oats.
    11·2 answers
  • I need help solving number 11 please.
    13·1 answer
  • What is the definition of the cosine ratio of an acute angle of a triangle?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!