All categories

3 years ago

[(21 + 5) ÷ 2] + 7 • (8 - 3) equals

Mathematics

1 answer:

kow [346]3 years ago

6 0

[(21 + 5) ÷ 2] + 7 × (8 - 3)
[26 ÷ 2] + 7 × (8 - 3)
13 + 7 × (8 - 3)
13 + 7 × 5
13 + 35
48

You might be interested in

I need help ahhh someone please

Xelga [282]

Translate down and reflect over a vertical line! :)

it means bring the cup down and then flip

8 0

3 years ago

It’s logarithm. And I’m stuck. Please help me solve

kondor19780726 [428]

I hope the solution in pic helps you

3 0

2 years ago

Jamal is running 42 kilometers. The amount of time t it takes Jamal to run varies inversely with the rate, r, at which he runs,

leva [86]

Answer:

t α 1 /r ; t = k/r

Step-by-step explanation:

Given that :

Time taken, t varies inverse as rate, r

MATHEMATICALLY,

t α 1 /r

Hence,

t = k/r ;

Where, k is the proportionality constant

Hence, the situation could be expressed as :

t = k/r OR

t α 1 /r

6 0

2 years ago

In a group of 30 children, 80%can’t swim how many children can’t swim

adoni [48]

Answer:

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

During the first hour of operation the farm stand owner sold 15% of the apples he had. On the second hour he sold 20% of the rem

Lelechka [254]

Answer:

200 kg

Step-by-step explanation:

First hour he sold 15% (remaining is 85%)

Second hour he sold 20% of remaining (which is 85%) -- so he sold $(0.2)(0.85)=0.17$ , which is 17% (remaining 85-17=68%)

Third hour he sold 25% of remaining (which is 68%) -- so he sold $(0.25)(0.68)=17$ , which is 17%

In third hour he sold 34, so 17% is 34. To find total he initially had, we need to find (100%). We can setup the ratio (letting x equal his initial amount):

$\frac{0.17}{34}=\frac{1}{x}\\0.17x=34\\x=\frac{34}{0.17}=200$

Initially the farm stand owner had 200 kg of apples.

5 0

2 years ago