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
AfilCa [17]
3 years ago
14

540 less than the product of 54 and a number is 918

Mathematics
2 answers:
maria [59]3 years ago
8 0
54x - 540 = 918
+540 +540
54x = 1458
/54 /54
x = 27
Evgen [1.6K]3 years ago
5 0
First, you get you equation, which is 54x-540=918. Then you solve your equation. First, add 540 to both sides, get 54x=1,458. Then divide both sides by 54, and get x=27
You might be interested in
Consider these functions f(x)=3x-7 g(x)=x+1/x-1 what is the of f(g(3)) answer
JulijaS [17]

Answer:

\boxed{-1}

.

Step-by-step explanation:

g(3) = \frac{3 + 1}{3 - 1}  = 2

f(g(3)) = 3(2) - 7 = -1

3 0
2 years ago
NutritionCalc Plus uses the equations from the National Academy of Medicine to calculate the Estimated Energy Requirement (EER)
olga nikolaevna [1]

Answer:

The correct option is (A).

Step-by-step explanation:

The equation for the Estimated Energy Requirement (EER) of 19 or more years older men is:

EER = 662 - (9.53 \times AGE) + PA \times (15.91 \times WT + 539 \times HT)

Here,

AGE = age counted in years

PA = appropriate physical activity factor

WT = weight in kilograms

HT = height in meters

The physical activity factor for men and women is:

Activity Level       PA (men)      PA (Women)

Sedentary              1.00                1.00

    Low                    1.11                1.12

  Active                   1.25                1.27

Very Active              1.48                1.45

Given:

AGE = 22 year-old male college student

PA = low = 1.11

WT = 180 pounds = 81.6466 kg

HT = 5'10" = 1.778 m

Compute the value of EER as follows:

EER = 662 - (9.53 \times AGE) + PA \times (15.91 \times WT + 539 \times HT)

        = 662 - (9.53 \times 22) + 1.11 \times (15.91 \times 81.6466 + 539 \times 1.778)\\\\=662-209.66+1.11\times (1298.997406+958.342)\\\\=452.34+2505.64674066\\\\=2957.98674066\\\\\approx 2962

Thus, the EER for a 22-year-old male college student is approximately 2962 kcal.

The correct option is (A).

6 0
3 years ago
27<br> x 9<br> How do I solve this
Tanya [424]

Answer:

you muliply first 9×7 and then carry the remainder to the other side and then 9×2 and add the remainder

5 0
3 years ago
Read 2 more answers
The pesticide diazinon is in common use to treat infestations of the German cockroach, Blattella germanica. A study investigated
cluponka [151]

Answer:

We conclude that there is no difference in the proportion of cockroaches that died on each surface.

Step-by-step explanation:

We are given that a study investigated the persistence of this pesticide on various types of surfaces.

After 14 days, they randomly assigned 72 cockroaches to two groups of 36, placed one group on each surface, and recorded the number that died within 48 hours. On the glass, 18 cockroaches died, while on plasterboard, 25 died.

<em>Let </em>p_1<em> = proportion of cockroaches that died on glass surface.</em>

<em />p_2<em> = proportion of cockroaches that died on plasterboard surface.</em>

So, Null Hypothesis, H_0 : p_1-p_2 = 0      {means that there is no difference in the proportion of cockroaches that died on each surface}

Alternate Hypothesis, H_A : p_1-p_2\neq 0      {means that there is a significant difference in the proportion of cockroaches that died on each surface}

The test statistics that would be used here <u>Two-sample z proportion</u> <u>statistics</u>;

                       T.S. =  \frac{(\hat p_1-\hat p_2)-(p_1-p_2)}{\sqrt{\frac{\hat p_1(1-\hat p_1)}{n_1}+\frac{\hat p_2(1-\hat p_2)}{n_2}  } }  ~ N(0,1)

where, \hat p_1 = sample proportion of cockroaches that died on glass surface = \frac{18}{36} = 0.50

\hat p_2 = sample proportion of cockroaches that died on plasterboard surface = \frac{25}{36} = 0.694

n_1 = sample of cockroaches on glass surface = 36

n_2 = sample of cockroaches on plasterboard surface = 36

So, <u><em>test statistics</em></u>  =  \frac{(0.50-0.694)-(0)}{\sqrt{\frac{0.50(1-0.50)}{36}+\frac{0.694(1-0.694)}{36}  } }

                               =  -1.712

The value of z test statistics is -1.712.

Since, in the question we are not given with the level of significance so we assume it to be 5%. Now, at 5% significance level the z table gives critical values of -1.96 and 1.96 for two-tailed test.

Since our test statistics lies within the range of critical values of z, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which <u>we fail to reject our null hypothesis</u>.

Therefore, we conclude that there is no difference in the proportion of cockroaches that died on each surface.

8 0
3 years ago
On Friday, 278 fourth graders went on a field trip to the Arizona State museum. The staff divided them into 7 tour groups. Which
stiks02 [169]
There would be ABOUT 40 kids in each group :-)

6 0
3 years ago
Read 2 more answers
Other questions:
  • The equation of line f is y = 1/4x -1. line g includes the point (1,-6) and is perpendicular to line f . What is the equation of
    5·1 answer
  • Find the missing value. If not whole number, leave in simplest radical form. PLEASE HELP!!
    9·1 answer
  • Please help ASAP. Please show ur work
    13·1 answer
  • A type of rope weighs 4 ounces per inch.
    13·2 answers
  • Points q, r, s, t, are plotted on the number line below<br><br><br><br>​
    10·1 answer
  • Joyce paid $50 for an item at the store that was 45 percent of the original price. What was the original price?
    15·1 answer
  • Find the slope using the formula.<br> (3,-2) and (3, 6)
    14·1 answer
  • Y= 2x +2
    10·2 answers
  • What is 7,000,000 + 300,000 + 70,000 + 3,000 + 80 + 2 in standard form?
    13·2 answers
  • Which of the following are square roots of the number below? Check all that<br> apply.<br> 100
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!