2 years ago

Help me please thank you

Mathematics

2 answers:

Black_prince [1.1K]2 years ago

6 0

Answer:

b)30 boys c)1425 beats

Step-by-step explanation:

IceJOKER [234]2 years ago

3 0

Answer:

Step-by-step explanation:

b and g are the number of boys and girls, respectively.

b:g = 3:4

b = 3x, g = 4x

3x+4x = 70

x = 10

There are 30 boys.

:::::

(380 beats)/(4 minutes) = (380/4 beats)/minute = (95 beats)/minute

15 minutes × (95 beats)/minute = 1425 beats

You might be interested in

9x (-2y + 5x) - 4 xy (6x-3y) please the person who answers will be marked as brainliest. please show working

Alenkasestr [34]

Answer:

See explanation

Step-by-step explanation:

$9x(-2y+5x)-4xy(6x-3y)$

By the distributive property this is equal to:

$9x(-2y)+9x(5x)-4xy(6x)-4xy(-3y)=\\\\-18xy+45x^2-24x^2y+12xy^2$

Hope this helps!

4 0

3 years ago

The school office ordered 24 boxes of pens. Their total cost was $19152. What was the cost of 1 box of pens?

aleksley [76]

Answer:

one box costs $19152/24=$798

6 0

3 years ago

The booster club needs to raise at least $6,000 for new football uniforms. So far, they have raised $1,200.

lana66690 [7]

Answer:

• Let x be the number of members

• In inequalities, at least means greater or equal ( ≥ )

${ \underline{ \mathfrak{ \: answer : }}}$

${ \boxed{ \boxed{ \rm{x + 1200 \geqslant 6000}}}}$

• To get the average, substitute for x as 99 and amount collected by each member

3 0

2 years ago

When solving this equation: -16 + x = -15 we start with adding 16 to both sides. Why do we use addition?

Ierofanga [76]

Answer:

So you can cancel out the 16. See, the -16 is negative, and if we add +16 to it, then it cancels out and is 0. That way, you have x=1.

Step-by-step explanation:

-16x+x=-15

+16x +16

0+x=1

x=1

6 0

2 years ago

What’s (-2/5)-(-4/5)=

bekas [8.4K]

Answer:

0.4

Step-by-step explanation:

6 0

2 years ago