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
photoshop1234 [79]
3 years ago
10

The ratio of girls to boys who participated in the quiz bowl was 7:5. There were 42 girls in the competition. How many boys part

icipated? A) 28 B) 30 C) 35 D) 49
Mathematics
1 answer:
Zinaida [17]3 years ago
7 0
The way i do it, is sort of like this :

Is 7 a factor of 42? 
  Is 5 a factor of 42? 

7 is a factor of 42. 
It must be in multiples of 7!

Therefore, we have 5 on the other side, which makes it 5 x 7 = 35
You might be interested in
Conduct a hypothesis test to test the hypothesis that cloud seeding with silver nitrate increases rainfall. Use significance lev
masya89 [10]

Answer:

Paired t-test

Step-by-step explanation:

paired t–test is used  when there is one measurement variable and two nominal variables. The most common design is that one nominal variable represents individual organisms, while the other is "before" and "after" some treatment.

6 0
3 years ago
ΔABC and ΔXYZ are similar triangles. The lengths of two sides of each triangle are shown. Find the lengths of the third side of
Norma-Jean [14]

Answer:

b=9

x=5.5

Step-by-step explanation:

find the common ration

AB is 6, and XY is 3 (they are the corresponding sides)

ratio is 2 to 1 (6/3=2/1)

AC corresponds with YZ

XY is 4.5 so b is 4.5*2=9

ZY corresponds with CB

CB is 11, since XYZ is the smaller divide by 2 instead of multiplying by 2

4 0
3 years ago
Solve this quetion...4
alukav5142 [94]

Answer:

1350 grains

Step-by-step explanation:

Since he needs 450 grains for 6 people, he would need three times that for three times the amount of people.

Therefore, for 6\cdot3=18 people, he would need 450\cdot3=1350 grains.

8 0
2 years ago
Graph triangle XYZ with vertices X(0, -4), Y (4, -1), and Z(6, -3) on the coordinate grid.
gogolik [260]

Answer:

Step-by-step explanation:

6 0
3 years ago
Which interval for the graphed function contains the local maximum?
photoshop1234 [79]

Answer:

2

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Se vendieron para una función en el teatro 255 entradas a $130,antes del comienzo de la función,hubo 5 devoluciones,pero luego s
    12·1 answer
  • A deli that just opened was giving out free mini sandwiches. A sample of 50 likely customers was surveyed about which sandwich t
    12·1 answer
  • If the velocity of a car traveling in a straight line at time v(t) then the difference in its odometer readings between time t=a
    10·1 answer
  • Math WHAT is the least common multiple of 12 and 18
    10·2 answers
  • Here it is the better quality question
    10·1 answer
  • Please refer to the pictures below
    12·1 answer
  • Evaluating reports , help me please ...
    6·1 answer
  • What is the solution to the equation -2(2x - 4)= -5x + 3?
    15·2 answers
  • The square pool was turned into a rectangular one and it's area was enlarged by a factor of 5 by enlarging one side of the pool
    5·1 answer
  • Write 2549 correct to the nearest 10​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!