4 years ago

Please help!?

Mathematics

2 answers:

Semmy [17]4 years ago

5 0

Answer: 60

Step-by-step explanation:

Always take care of what is in ( ) and [ ] first

28 - 2

26 + 4

30(2) i assume you are multiplying it?

oksian1 [2.3K]4 years ago

5 0

32 i think

Step-by-step explanation: 18+10=28-2=26 6-4=2+4=6=32

You might be interested in

On a standardized test, Rasi answered the fast: 22 questions in 5 minutes. There are 7]

kogti [31]

Answer:

they are directly proportional

5/22*7=1.59

he would finish in 1.59 min

7 0

3 years ago

Please need help on this

Arisa [49]

Angle RQU would be obtuse
Angle SQU would be acute

7 0

3 years ago

Can u solve this questions.i don't know what to do.

PilotLPTM [1.2K]

Answer:

Step-by-step explanation:

average is calculated as

average = $\frac{sum}{count}$

$\frac{sum}{2}$ = 13 ( multiply both sides by 2 )

sum of 2 eldest = 26

Then for the 4 children

average = $\frac{26+2+4}{4}$ = $\frac{32}{4}$ = 8

5 0

3 years ago

Keiko sold 3 less than three-fourths of his sister's sales. Which expression represents what Keiko sold?

lisov135 [29]

Answer: 3/4x - 3

Step-by-step explanation:

Let his sister's sale be represented by x.

Since we are informed that Keiko sold 3 less than three-fourths of his sister's sales, the expression that represents what Keiko sold will be:

= (3/4 × x) - 3

= 3/4x - 3

7 0

3 years ago

Read 2 more answers

PLEASE HELP! (STATS) A box contains 10 batteries of which 6 are still working. Jada starts picking batteries one at a time witho

oee [108]

Answer: 0.167

Step-by-step explanation:

Given: Total batteries = 10

Batteries that are still working = 6

Number of ways to pick 3 working batteries = $^6C_3=\dfrac{6!}{3!3!}$

$=\dfrac{6\times5\times4\times3!}{6\times3!}\\\\=20$

Number of ways of pick 3 batteries out of 10 =

$^{10}C_3=\dfrac{10!}{3!7!}=\dfrac{10\times9\times8\times7!}{6\times7!}\\\\=120$

Required probability = $\dfrac{20}{120}=0.167$

Hence, the probability that all of the first 3 she chooses will work = 0.167

7 0

3 years ago